DErik's Test Page Renamed - Revision history

DErik: Undo revision 693 by DErik (talk)

2024-02-04T23:24:19Z

Undo revision 693 by DErik (talk)

← Older revision		Revision as of 16:24, 4 February 2024
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	:*The current (amperage) value on a schematic is usually abbreviated as “amps” or annotated by the letter “A”.		:*The current (amperage) value on a schematic is usually abbreviated as “amps” or annotated by the letter “A”.
	:*The letter “I” is used for current in electrical formulas (we like to keep things a little difficult, but it’s etymology can be traced back to some French historical use).		:*The letter “I” is used for current in electrical formulas (we like to keep things a little difficult, but it’s etymology can be traced back to some French historical use).
	* '''Current<ref name="wikiCurrent" />:~~'''~~		* '''<span id="Current" />Current<ref name="wikiCurrent" />: The flow of electrons or ions through a conductive medium.'''
	~~:This is the~~ flow of electrons or ions through a conductive medium. One thing that confuses folks is: which way are the electons flowing? Typically, we consider the flow to be from the positive pole of an electrical source to the negative pole. But, to confuse things, the positive pole is actually deficient in electrons (or negatively charged ions), while the negative pole is saturated with them. So in strict physical terms, the flow of elections would be from the negative pole to the positive. Now, since I have probably confused you, ignore the reality of the situation and just consider that a current is simply the flow itself, and in most instances, the direction makes no difference. It is really the difference in electrical potential that is important. Current is measured in [[#Ampere\|<u>'''''amperes'''''</u>]] and can be calculated by Ohm’s Law as voltage divided by ~~resitance~~.		:One thing that confuses folks is: which way are the electons flowing? Typically, we consider the flow to be from the positive pole of an electrical source to the negative pole. But, to confuse things, the positive pole is actually deficient in electrons (or negatively charged ions), while the negative pole is saturated with them. So in strict physical terms, the flow of elections would be from the negative pole to the positive. Now, since I have probably confused you, ignore the reality of the situation and just consider that a current is simply the flow itself, and in most instances, the direction makes no difference. It is really the difference in electrical potential that is important. Current is measured in [[#Ampere\|<u>'''''amperes'''''</u>]] and can be calculated by Ohm’s Law as [[#Voltage\|<u>'''''voltage'''''</u>]] divided by [[#Resistance\|<u>'''''resistance'''''</u>]].
	* '''Voltage<ref name="wikiVoltage" />:~~'''https://en.wikipedia.org/wiki/Voltage~~		<div style="text-align:center;"><math>I=\frac{V}{R}</math></div>
	~~:This is the~~ electrical potential difference between two charged elements. In electronic engineering and research, the volt is defined as one joule per coulomb. But for model railroading, we rarely use joules or coulombs in our parlance, idioms, or vernacular exposition. But the most confusing thing about voltage is its relationship to energy and power. Voltage is measured in volts and can be calculated from Ohm’s Law as current multiplied by resistance.		* '''<span id="Voltage" />Voltage<ref name="wikiVoltage" />: The electrical potential difference between two charged elements.'''
			:In electronic engineering and research, the volt is defined as one joule per coulomb. But for model railroading, we rarely use joules or coulombs in our parlance, idioms, or vernacular exposition. But the most confusing thing about voltage is its relationship to energy and power. Voltage is measured in <u>'''volts'''</u> and can be calculated from Ohm’s Law as [[#Current\|<u>'''''current'''''</u>]] multiplied by [[#Resistance\|<u>'''''resistance'''''</u>]].
			<div style="text-align:center;"><math>V=I*R</math></div>
	* '''Energy vs Power<ref name="byjusEPW" /><ref name="energyeducation" />:'''		* '''Energy vs Power<ref name="byjusEPW" /><ref name="energyeducation" />:'''
	:For our purposes in model railroading, we can generally ignore power and energy concepts, as well as the related concept of work. So you might want to just skip this section. But, for completeness, let me elaborate a little bit.		:For our purposes in model railroading, we can generally ignore power and energy concepts, as well as the related concept of work. So you might want to just skip this section. But, for completeness, let me elaborate a little bit.
			:'''Energy''' is the ability to do work, or to provide power. Power is the actual performance of work for a specified period of time; that is, power is the rate of doing work, i.e., using energy. For example, energy is the charge present on a battery, and power is the battery's ability to deliver that charge over time to some circuit components.
			:'''Power'''<ref name="wikiPower" /> is often measured in watts. As an example; the power used by a light bulb is measured in watts (not voltage or amperage). The way that power (usually in watts) is determined is based on energy over time. There are various terms (joules, ergs, newtons) used to express and calculate watts, but, for our usage in model railroading, it is basically just voltage times amperage (specifically, one watt is one volt times one ampere). So watts are really not relevant until a circuit is complete, since no power is being consumed from a battery until that circuit is closed.
			:'''Kilowatt-hours'''<ref name="wikiKWH" /> are what you might see on your electric bill, as that is what the power companies use as billing metric. As you might suspect from the term, a watt-hour is the power provided by a one watt source or used by a device during one hour. Energy is calculated as the power supplied for a specified duration of time, hence kilowatt-hour is power in watts multiplied by time in hours.
			:While batteries are often labeled by the voltage they possess, you may often see amp-hours or milliamp-hours on batteries. This is a way or expressing how long the charge of the battery will last. The charge itself really isn’t important, but it is used to determine the energy available in the battery and the power it can deliver. For example, a battery with an amp-hour rating of The relationship between watts and amp-hours is based on the voltage. Watts can be computed from amp-hours by multiplying the amp-hours by the voltage. For example, a 9 volt battery having a rating of 625 milliamp-hours will have 5.625 watts available; so it could be used to power something that takes no more than 5.625 watts. And this will obviously decrease as the battery is used.
			* '''Resistance<ref name="wikiResistance" />:'''https://en.wikipedia.org/wiki/Electrical_resistance_and_conductance
			The

			These units are probably enough to allow you to analyze and work with most of the electronic components and circuits present in a model railroad layout.
			===References===
			<references>
			<ref name="ElecTut">[https://www.electronics-tutorials.ws/ Electronics Tutorials: Good explanations of several things about electricity and circuits.</ref>
			<ref>[https://en.wikipedia.org/wiki/Electrical_resistance_and_conductance Wikipedia: Resistance and Conductance]</ref>
			<ref>[https://en.wikipedia.org/wiki/Voltage Wikipedia: Voltage]</ref>
			<ref>[https://www.reference.com/science/electrical-force-d1a7c39830a63b2f Reference: What Is Electrical Force?]</ref>
			</references>
			*Something else here<ref>Something else here</ref>
			<references />

			=Done with basic electronics testing=


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	----		----
	A file reference included here: <nowiki>[[File:5387.jpg\|thumb\|100x100px\|Some caption here]]</nowiki>[[File:5387.jpg\|thumb\|100x100px\|Some caption here]] That is to a JPG and shown as a thumbnail photo. It appears that it will be placed by default to the far right of the text body, with any following text wrapped around it. This seems to be because it is a "thumbnail" or a floating. But you can change the left right position using a floating attribute. For example, the following picture <span style="float:left; margin:5px;">[[File:5387.jpg\|thumb\|100x100px\|Some caption here]]</span> is in a <nowiki><span style="float:left; margin:5px;">pic</span></nowiki>. <br /><br />And you are able to modify the position of a picture with regard to the text even when it is not a thumb or floating picture. But in those cases, it seems that horizontal and vertical positioning do not interact well with each other. For example, to center the pic and have the bottom of the pic even with the bottom of the text does not seem possible, while doing either one independtly works fine. See [http://Help:Images Help:Images]		A file reference included here: <nowiki>[[File:5387.jpg\|thumb\|100x100px\|Some caption here]]</nowiki>[[File:5387.jpg\|thumb\|100x100px\|Some caption here]] That is to a JPG and shown as a thumbnail photo. It appears that it will be placed by default to the far right of the text body, with any following text wrapped around it. This seems to be because it is a "thumbnail" or a floating. But you can change the left right position using a floating attribute. For example, the following picture <span style="float:left; margin:5px;">[[File:5387.jpg\|thumb\|100x100px\|Some caption here]]</span> is in a <nowiki><span style="float:left; margin:5px;">pic</span></nowiki>. <br /><br />And you are able to modify the position of a picture with regard to the text even when it is not a thumb or floating picture. But in those cases, it seems that horizontal and vertical positioning do not interact well with each other. For example, to center the pic and have the bottom of the pic even with the bottom of the text does not seem possible, while doing either one independtly works fine. See [http://Help:Images Help:Images]
			A reference to the image file directly: [[:File:5387.jpg\|Opens in a separate tab or window with the file information included]]
	----		----
	The "No wiki formatting" button in the toolbar above wraps selected text in the <nowiki><nowiki></nowiki></nowiki> tag. This results in the included text not being recognized as wiki commands. And I think not as HTML in some cases either. Still experimenting with that.		The "No wiki formatting" button in the toolbar above wraps selected text in the <nowiki><nowiki></nowiki></nowiki> tag. This results in the included text not being recognized as wiki commands. And I think not as HTML in some cases either. Still experimenting with that.

DErik at 20:01, 26 January 2024

2024-01-26T20:01:08Z

@@ Line 2: / Line 2: @@
 [[Category:Works In Progress]] <span style="color:red;"><br />Under construction/modification by [[User:DErik|DErik]] ([[User talk:DErik|talk]]) 18:18, 20 May 2023 (PDT)<br /></span>
 <!--{{rtoc}}-->
 This is a test page, where I experiment with various things. Additional pages exist as well. See the [[DErik's TOC Xprmnts]] page. It describes various test I made incorporating text, headers, and a TOC to see how the popup preview (when you pause the cursor over an article link, like the one here) is displayed. Results indicate that some straight text (like the synopsis of the article) should be before any header or TOC request. Other things, like including the article in a category, or putting some HTML (particularly comments) first is also OK. For example, I have both a category specification and HTML comments in front of this paragraph. Which is then followed by a header.  I have not specifically requested a TOC, but one will be generated automatically because I have more than 3 headings (at various levels).
 =a heading=

DErik at 19:33, 26 January 2024

2024-01-26T19:33:53Z

← Older revision		Revision as of 12:33, 26 January 2024
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	Setting an anchor in a section heading		Setting an anchor in a section heading
	==<nowiki><span id="Alternate Section Title 1">Some anchor name here?</span></nowiki><nowiki>Section heading goes here==</nowiki>
	Note the placement. This must be a "span" tag, not a "div". (Such anchors allow sections to be retitled without breaking incoming links.) DErik note: ~~Note~~ that the text line starts with a blank character~~, not the "==" characters that indicate a section start~~. Deleting that blank character results in the following:		<nowiki>==<span id="Alternate Section Title 1">Some anchor name here?</span></nowiki><nowiki>Section heading goes here==</nowiki>
	== <nowiki><span id="Alternate Section Title 1">Some anchor name here?</span></nowiki>Section heading goes here==		Note the placement. This must be a "span" tag, not a "div". (Such anchors allow sections to be retitled without breaking incoming links.) DErik note: When you edit this page, you will see that the text line starts with a blank character. Deleting that blank character results in the following:

			<nowiki>==<span id="Alternate Section Title 1">Some anchor name here?</span></nowiki><nowiki>Section heading goes here==</nowiki>

	Also note that, in both examples above, everything between the double equals sign pairs, that are the wiki markup for a section, is also wrapped in a "nowiki" tag section - that you cannot see without editing this page.		Also note that, in both examples above, everything between the double equals sign pairs, that are the wiki markup for a section, is also wrapped in a "nowiki" tag section - that you cannot see without editing this page.
	----		----
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	==Tables==		==Tables==
	See [https://mediawiki.org/wiki/Help:Links Help:Tables] help page.<br />		See [https://mediawiki.org/wiki/Help:Links Help:Tables] help page.<br />
	==Math equations==		=Math equations=

	From the [https://en.wikipedia.org/wiki/Help:Displaying_a_formula Wikipedia Help:Displaying a formula] page:<br /><span style="color:red;">		From the [https://en.wikipedia.org/wiki/Help:Displaying_a_formula Wikipedia Help:Displaying a formula] page:<br /><span style="color:red;">

DErik at 23:38, 2 January 2024

2024-01-02T23:38:18Z

← Older revision		Revision as of 16:38, 2 January 2024
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	See [https://mediawiki.org/wiki/Help:Links Help:Tables] help page.<br />		See [https://mediawiki.org/wiki/Help:Links Help:Tables] help page.<br />
	==Math equations==		==Math equations==
	~~See [https://wikipedia.org/wiki/Help:Displaying_a_formula Displaying a formula]. Here are some examples:~~

	''E'' = ''mc''{{sup\|2}}		From the [https://en.wikipedia.org/wiki/Help:Displaying_a_formula Wikipedia Help:Displaying a formula] page:<br /><span style="color:red;">
	''E'' = ''mc''<sup>2</sup>		For example, the famous [[Einstein formula]] can be entered in raw HTML as <nowiki>{{nowrap\|''E'' {{=}} ''mc''<sup>2</sup>}}</nowiki>, which is rendered as {{nowrap\|''E'' {{=}} ''mc''<sup>2</sup>}} (the template <nowiki>{{nowrap}}</nowiki> is here only for avoiding a line break inside the formula). With <nowiki>{{math}}</nowiki>, it can be entered as <nowiki>{{math\|''E'' {{=}} ''mc''{{sup\|2}}}}</nowiki>, which is rendered as {{math\|''E'' {{=}} ''mc''{{sup\|2}}}}. With LaTeX, it is entered as <nowiki><math>E=mc^2</math></nowiki>, and rendered as <math>E=mc^2</math>.
	<br /><math>E = mc^2</~~math><br /~~>		</span><br />
	{{math\|1=''E'' = ''mc''{{sup\|2}}}}		(LaTeX is the current default in this version of MediaWiki.)
	~~for~~ E = mc^2

	~~For example,~~ the ~~famous~~ [~~[Einstein formula]] can be entered in raw HTML as <nowiki>{{nowrap\|''E'' {{=}} ''mc''<sup>2<~~/~~sup>}}<~~/~~nowiki>, which is rendered as {{nowrap\|''E'' {{=}} ''mc''<sup>2<~~/~~sup>}} (the template <nowiki>{{nowrap}}<~~/~~nowiki> is here only for avoiding~~ a ~~line break inside the~~ formula~~). With <nowiki>{{~~math}}</nowiki>, it can be entered as <nowiki>{{math\|''E'' {{=}} ''mc''{{sup\|2}}}}</nowiki>, which is rendered as {{math\|''E'' {{=}} ''mc''{{sup\|2}}}}. With LaTeX, it is entered as <syntaxhighlight lang="html" inline><math>E=mc^2</math></syntaxhighlight>, and rendered as <math>E=mc^2</math>.		See the [https://meta.wikimedia.org/wiki/Help:Displaying_a_formula MediaWIki Help:Displaying a formula] for details on rendering math equations here. Here are some examples:

	~~For example, the famous [[Einstein formula]] can be entered in raw HTML as~~ <~~syntaxhighlight lang~~=~~"wikitext" inline>~~{{~~nowrap~~\|''E'' {{=}} ''mc''<sup>2</sup>}}</~~syntaxhighlight~~>~~, which is rendered as<br /~~>		<nowiki>''E'' = ''mc''{{sup\|2}}</nowiki> --> '''''E'' = ''mc''{{sup\|2}}'''<br />
	~~{{nowrap\|~~''E'' {{=}} ''mc''<sup>2</sup>}}<br />		<nowiki>''E'' = ''mc''<sup>2</sup></nowiki> --> '''''E'' = ''mc''<sup>2</sup>'''<br />
	~~(the template~~ <nowiki>~~{{nowrap}}~~</~~nowiki~~> ~~is here only for avoiding a line break inside the formula). With~~ <nowiki>{{math}}</~~nowiki~~>, it can be ~~entered as~~ <nowiki>{{math\|''E'' {{=}} ''mc''{{sup\|2}}}}</nowiki>~~, which is rendered as<br /~~>		<nowiki><math>E = mc^2</math></nowiki> --> '''<math>E = mc^2</math>''' Note that Bold is not rendered, but this can be changed so it is rendered in bold, or plain text (no italic)<br />
	{{math\|''E'' {{=}} ''mc''{{sup\|2}}}}<br />		<nowiki>{{math\|1=''E'' = ''mc''{{sup\|2}}}}</nowiki> --> '''{{math\|1=''E'' = ''mc''{{sup\|2}}}}'''<br />
	~~With LaTeX, it is entered as~~ <math>E=~~mc^2~~</math>, ~~and rendered as~~		<div style="text-align:center;">
	�		<math>V=R*I</math>,    <math>R=V/I</math> or <math>R=\frac{V}{I}</math>,     <math>I=\frac{V}{R}</math> or <math>I = V \div R</math>
	=
	�
	�
	2
	~~E=mc^{2}.~~

	<~~div class~~=~~"latex">~~
	~~\int_{0}^{\pi}~~\frac{~~x^{4~~}~~\left(1-x\right)^~~{4}~~}{1+x^{2}}dx~~ =\frac{22}{7}~~-\pi~~
	</~~div~~>

	<~~div class="latex"~~>
	~~\int_{0}^{\pi}\frac{x^{4}\left(1-x\right)^{4}}{1+x^{2}}dx~~ =\~~frac{22}{7}-\pi~~
	</div>		</div>


	=Reference List=		=Reference List=
	<references />		<references />
	[[Category:DErik (Don Erikstrup) Pages]]		[[Category:DErik (Don Erikstrup) Pages]]

DErik at 22:00, 2 January 2024

2024-01-02T22:00:53Z

Show changes

DErik at 01:18, 21 May 2023

2023-05-21T01:18:11Z

← Older revision		Revision as of 18:18, 20 May 2023
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	<!--This is DErik's Test Page Renamed-->		<!--This is DErik's Test Page Renamed-->
	[[Category:Works In Progress]]		[[Category:Works In Progress]] <span style="color:red;"><br>Under construction/modification by [[User:DErik\|DErik]] ([[User talk:DErik\|talk]]) 18:18, 20 May 2023 (PDT)<br></span>
	<!--{{rtoc}}-->		<!--{{rtoc}}-->
	This is a test page, where I experiment with various things. Additional pages exist as well. See the [[DErik's TOC Xprmnts]] page. It describes various test I made incorporating text, headers, and a TOC to see how the popup preview (when you pause the cursor over an article link, like the one here) is displayed. Results indicate that some straight text (like the synopsis of the article) should be before any header or TOC request. Other things, like including the article in a category, or putting some HTML (particularly comments) first is also OK. For example, I have both a category specification and HTML comments in front of this paragraph. Which is then followed by a header. I have not specifically requested a TOC, but one will be generated automatically because I have more than 3 headings (at various levels).		This is a test page, where I experiment with various things. Additional pages exist as well. See the [[DErik's TOC Xprmnts]] page. It describes various test I made incorporating text, headers, and a TOC to see how the popup preview (when you pause the cursor over an article link, like the one here) is displayed. Results indicate that some straight text (like the synopsis of the article) should be before any header or TOC request. Other things, like including the article in a category, or putting some HTML (particularly comments) first is also OK. For example, I have both a category specification and HTML comments in front of this paragraph. Which is then followed by a header. I have not specifically requested a TOC, but one will be generated automatically because I have more than 3 headings (at various levels).

DErik at 21:46, 20 May 2023

2023-05-20T21:46:26Z

← Older revision		Revision as of 14:46, 20 May 2023
Line 90:		Line 90:
	=Reference List=		=Reference List=
	<references />		<references />
			[[Category:DErik (Don Erikstrup) Pages]]

DErik at 13:48, 5 May 2023

2023-05-05T13:48:16Z

← Older revision		Revision as of 06:48, 5 May 2023
Line 2:		Line 2:
	[[Category:Works In Progress]]		[[Category:Works In Progress]]
	<!--{{rtoc}}-->		<!--{{rtoc}}-->
	~~Real text after the blank again.~~		This is a test page, where I experiment with various things. Additional pages exist as well. See the [[DErik's TOC Xprmnts]] page. It describes various test I made incorporating text, headers, and a TOC to see how the popup preview (when you pause the cursor over an article link, like the one here) is displayed. Results indicate that some straight text (like the synopsis of the article) should be before any header or TOC request. Other things, like including the article in a category, or putting some HTML (particularly comments) first is also OK. For example, I have both a category specification and HTML comments in front of this paragraph. Which is then followed by a header. I have not specifically requested a TOC, but one will be generated automatically because I have more than 3 headings (at various levels).

	~~A blank line preceeds this. Immediately followed by the header.<br>A <nowiki><br></nowiki> preceeds this. Next~~ a ~~<nowiki>{{rtoc}}</nowiki> transclusion.~~
	~~Yep~~, ~~the transclusion stopped the preview~~. ~~Not really unexpected since it is a "Table of Contents"~~. ~~But let~~'s ~~try just a <nowiki>__TOC__</nowiki> <nowiki>__TOC__</nowiki>~~.
	~~Yep~~, ~~that stopped it too. Let's just let it be~~, ~~allowing the~~ TOC to ~~be displayed simply as a result of having headings in~~ the article~~.<br>Well~~, ~~no TOC was~~ displayed ~~at all~~. ~~Really need to have the sidebar set up to be the TOC. And it's a real shame~~ that ~~a heading line can't be~~ the ~~first real text. But a~~ synopsis ~~may not need the heading; allowing the preview to display as much~~ of the ~~synopsis as possible~~.~~<br>~~
	~~The heading being~~ the ~~first real text~~ in ~~the page may be~~ a ~~problem for the popup preview. So I removed it to see what would happen.~~

	~~[[DErik's TOC Xprmnts]]~~

	~~That seemed to help. Now trying a line with just a single space in it.~~ (~~Note that a blank line didn't seem to help.~~) ~~That didn't seem to work either. Back to putting real text in there as the~~ first ~~stuff. There also seems to be a considerable time lag between saving the changes and then having the preview recognize it. And the redirect page~~ is also ~~different at times, probably due to the time lag~~.

	Ok, ~~gotta back up again. The browser history may~~ have ~~had something to do with it. Back to just~~ a ~~space character - no other real text before the heading~~. ~~Still~~ a ~~significant time delay. It still thnks the real text is there (when preview attempted from another document). <br>~~
	~~Waited and retried preview. Put real text after the space again. Will wait and try preview again. <br>~~
	~~OK, preview works again showing the real text up to the~~ header. ~~Trying to put~~ a ~~blank line then some more text to see just how far the preview goes.<br>~~
	~~Appears that it will take quite a bit~~, but ~~the header stops it~~.
	=a heading=		=a heading=
	~~This page did start with:~~<~~pre~~>~~<!--This~~ is ~~DErik's Test Page Renamed-->~~		<center>this line is centered and all by itself, using HTML "center" tag</center>
	~~[[Category:Works In Progress]]~~		<center>And so is this line image, again using HTML "center" tag. Followed by an image that gets centered as well. Believe that is because I added a "center" attribute to the declaration of the image file, like so: <nowiki>[[File:Receiver_control_chip.jpeg\|center\|200px\|Receiver control chip]]</nowiki>
	<~~!--{{rtoc}}--~~>		[[File:Receiver_control_chip.jpeg\|center\|200px\|Receiver control chip]]But notice that the caption text is not included with the above image. To have a caption, the image must be declared as a thumbnail. Check this out:<nowiki>[[File:Receiver_control_chip.jpeg\|thumb\|200px\|Receiver control chip]]</nowiki><br>[[File:Receiver_control_chip.jpeg\|thumb\|200px\|Receiver control chip]]<br>I declared the image right after the example declaration, and then I forced a line break (used HTML "br" tag) after the image above, but still in the "center" tag. However, note that the thumbnail image is right justified, with text wrapped to its left. The next thumbnail below is centered because I included the "center" attribute in the declaration of the image file.
			[[File:Receiver_board_hooked_to_battery_and_track.jpeg\|thumb\|center\|Receiver board]]But notice that, if your browser page is wide enough, it isn't '''''exactly''''' centered. It is still to the left of the previous thumbnail. But it is centered in the space available to the left of the previous thumbnail. Shrink the width of the window to see how it behaves.<br>The "controller" thumb is left justified.
	~~=a heading=~~<~~/pre~~>		[[File:Frontside of handheld control station.jpeg\|thumb\|left\|alt=Front of controller\|The controller]]<br>The following thumb is sized at 200px.
	~~The heading being the first real text in the page may be a problem for the popup preview. So I removed it to see what would happen. That seemed to help. Now trying a~~ line ~~with just a single space in it~~. ~~(Note~~ that ~~a blank line didn't seem to help.) That didn't seem to work either. Back to putting real text in there~~ as ~~the first stuff~~. ~~There also seems~~ to ~~be a considerable time lag between saving~~ the ~~changes and then having~~ the ~~preview recognize it. And the redirect page is also different at times~~, ~~probably due to the time lag.~~		[[File:Receiver board hooked to battery and track.jpeg\|thumb\|200px\|center\|Dr. Bunza built this.]]<br>And here ends the HTML "center" tag.

	Ok, gotta back up again. The browser history may have had something to do with it. Back to just a space character - no other real text before the heading. Still a significant time delay. It still thnks the real text is there (when preview attempted from another document). <br>
	~~Waited and retried preview. Put real text after the space again. Will wait and try preview again~~. <br>
	~~OK, preview works again showing~~ the ~~real~~ text ~~up to~~ the ~~header~~. ~~Trying to put~~ a ~~blank line then some more text to see just how far~~ the ~~preview goes~~.<br>
	~~Appears that it will take quite a bit, but the header stops it~~.
	~~<center>this is centered?~~</~~center~~>
	<~~center~~>
	[[File:Receiver_control_chip.jpeg\|~~center~~\|200px\|Receiver control chip]]<br>
	[[File:Receiver_board_hooked_to_battery_and_track.jpeg\|thumb\|Receiver board]]<br>
	[[File:Frontside of handheld control station.jpeg\|thumb\|alt=Front of controller\|The controller]]<br>
	[[File:Receiver board hooked to battery and track.jpeg\|thumb\|Dr. Bunza built this.]]<br>
	</center>		</center>
			===Here's a level 3 header===
			But then I start a new center tag section.
	<center>This is a test page for DErik.</center>		<center>This is a test page for DErik.</center>
	----		----
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	<nowiki> <span style="font-family: Times New Roman; color: green; text-align: center;">This text is wrapped in a &lt;span&gt; tag with a CSS style attribute included. The CSS style of "text-align: center;" apparently is not recognized or is ignored or deleted by the wiki software.</span> </nowiki>		<nowiki> <span style="font-family: Times New Roman; color: green; text-align: center;">This text is wrapped in a &lt;span&gt; tag with a CSS style attribute included. The CSS style of "text-align: center;" apparently is not recognized or is ignored or deleted by the wiki software.</span> </nowiki>

	~~<nowiki>__TOC__</nowiki>~~
	==References and Footnotes==		==References and Footnotes==
	Inserting a reference: <ref>Some reference here</ref>. And then listing them, at least the ones defined so far.<references />		Inserting a reference: <ref>Some reference here</ref>. And then listing them, at least the ones defined so far.<references />

DErik at 11:12, 5 May 2023

2023-05-05T11:12:21Z

← Older revision		Revision as of 04:12, 5 May 2023
Line 6:		Line 6:
	A blank line preceeds this. Immediately followed by the header.<br>A <nowiki><br></nowiki> preceeds this. Next a <nowiki>{{rtoc}}</nowiki> transclusion.		A blank line preceeds this. Immediately followed by the header.<br>A <nowiki><br></nowiki> preceeds this. Next a <nowiki>{{rtoc}}</nowiki> transclusion.
	Yep, the transclusion stopped the preview. Not really unexpected since it is a "Table of Contents". But let's try just a <nowiki>__TOC__</nowiki> <nowiki>__TOC__</nowiki>.		Yep, the transclusion stopped the preview. Not really unexpected since it is a "Table of Contents". But let's try just a <nowiki>__TOC__</nowiki> <nowiki>__TOC__</nowiki>.
	Yep, that stopped it too. Let's just let it be, allowing the TOC to be displayed simply as a result of having headings in the article.<br>		Yep, that stopped it too. Let's just let it be, allowing the TOC to be displayed simply as a result of having headings in the article.<br>Well, no TOC was displayed at all. Really need to have the sidebar set up to be the TOC. And it's a real shame that a heading line can't be the first real text. But a synopsis may not need the heading; allowing the preview to display as much of the synopsis as possible.<br>
	The heading being the first real text in the page may be a problem for the popup preview. So I removed it to see what would happen.		The heading being the first real text in the page may be a problem for the popup preview. So I removed it to see what would happen.

			[[DErik's TOC Xprmnts]]

	That seemed to help. Now trying a line with just a single space in it. (Note that a blank line didn't seem to help.) That didn't seem to work either. Back to putting real text in there as the first stuff. There also seems to be a considerable time lag between saving the changes and then having the preview recognize it. And the redirect page is also different at times, probably due to the time lag.		That seemed to help. Now trying a line with just a single space in it. (Note that a blank line didn't seem to help.) That didn't seem to work either. Back to putting real text in there as the first stuff. There also seems to be a considerable time lag between saving the changes and then having the preview recognize it. And the redirect page is also different at times, probably due to the time lag.
Line 42:		Line 44:
	<nowiki> <span style="font-family: Times New Roman; color: green; text-align: center;">This text is wrapped in a &lt;span&gt; tag with a CSS style attribute included. The CSS style of "text-align: center;" apparently is not recognized or is ignored or deleted by the wiki software.</span> </nowiki>		<nowiki> <span style="font-family: Times New Roman; color: green; text-align: center;">This text is wrapped in a &lt;span&gt; tag with a CSS style attribute included. The CSS style of "text-align: center;" apparently is not recognized or is ignored or deleted by the wiki software.</span> </nowiki>

	__TOC__		<nowiki>__TOC__</nowiki>
	==References and Footnotes==		==References and Footnotes==
	Inserting a reference: <ref>Some reference here</ref>. And then listing them, at least the ones defined so far.<references />		Inserting a reference: <ref>Some reference here</ref>. And then listing them, at least the ones defined so far.<references />

DErik at 00:36, 5 May 2023

2023-05-05T00:36:50Z

← Older revision		Revision as of 17:36, 4 May 2023
Line 5:		Line 5:

	A blank line preceeds this. Immediately followed by the header.<br>A <nowiki><br></nowiki> preceeds this. Next a <nowiki>{{rtoc}}</nowiki> transclusion.		A blank line preceeds this. Immediately followed by the header.<br>A <nowiki><br></nowiki> preceeds this. Next a <nowiki>{{rtoc}}</nowiki> transclusion.
	Yep, the transclusion stopped the preview. Not really unexpected since it is a "Table of Contents". But let's try just a <nowiki>__TOC__</nowiki> __TOC__.		Yep, the transclusion stopped the preview. Not really unexpected since it is a "Table of Contents". But let's try just a <nowiki>__TOC__</nowiki> <nowiki>__TOC__</nowiki>.
			Yep, that stopped it too. Let's just let it be, allowing the TOC to be displayed simply as a result of having headings in the article.<br>
	The heading being the first real text in the page may be a problem for the popup preview. So I removed it to see what would happen.		The heading being the first real text in the page may be a problem for the popup preview. So I removed it to see what would happen.