# Test thread — to test things out. Do not lock! **URL:** \ **Category:** About This Message Board\ **Created:** [December 27, 2021, 6:05pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736 "2021-12-27T18:05:07Z")\ **Posts on this page:** 20\ **Page:** 45
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [August 6, 2025, 11:45pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/891 "2025-08-06T23:45:35Z")
For MathML syntax, tutorial and editor all in one-stop shopping go here: > **[Online Visual Math Editor for Latex and MathML](https://math-editor.online/)** > > Powerful online math editor supporting visual latex and mathml. Equation import, ocr, edit, share and export supported. ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [August 6, 2025, 11:48pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/892 "2025-08-06T23:48:34Z")
Good nitpick, but I think MathJax is the name of the library Discourse uses, while MathML is the name of the markup language that MathJax implements. Although I suspect you are for more expert in these matters than I. I know I don’t know in what ways MathJax may be a subset or superset or incompatible with MathML. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [August 6, 2025, 11:55pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/893 "2025-08-06T23:55:46Z")
MathML is an XML-based markup language. You probably aren’t writing it by hand or even by tool. Instead, you’re writing \LaTeX , or at least a \LaTeX -inspired syntax that implements some subset of it. I don’t think there’s a way to pass MathML syntax directly to MathJax via Discourse, though MathJax is capable of rendering it. I suspect that MathJax first converts LaTeX to MathML internally and then the rendering engine works on MathML. ---
**Author:** ![Topologist](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/topologist/32/3208_2.png) [@Topologist](https://boards.straightdope.com/u/Topologist)\ **Post date:** [August 7, 2025, 12:53am UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/894 "2025-08-07T00:53:30Z")
Actually, it’s doing something much more manual than that. MathML isn’t implemented fully or well on most browsers (Firefox I think has the most complete implementation). MathJax pretty much rolls its own by default. If you right-click on a sample of math (as in my post above), under “Math Settings” you can set the renderer to something other than the default, including MathML. It will warn you that MathML may not fully work. So knowing MathML syntax won’t help you use MathJax. Its syntax is \LaTeX as Dr.S mentions. ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [August 7, 2025, 1:28pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/895 "2025-08-07T13:28:18Z")
Thank you both! D’oh! 🤦‍♂️ I’ve screwed that up twice now in sperate threads / posts. The editor I use does MathML & LaTeX with the flip of a switch. I only use the LaTeX side. But the the damned thing is titled “MathML” whichever way you flip the switch. So I keep falling for that head-fake and get the terminology backwards. Yes, yes, I ought to at least recognize that ML means mark-up language and sorta implies a \ sort of syntax. Thank you again. LaTeX LaTeX LaTeX !!!11!1! ---
**Author:** ![Pleonast](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pleonast/32/1183_2.png) [@Pleonast](https://boards.straightdope.com/u/Pleonast)\ **Post date:** [August 7, 2025, 2:16pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/896 "2025-08-07T14:16:24Z")
That’s \LaTeX, good sir! ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [August 7, 2025, 2:22pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/897 "2025-08-07T14:22:15Z")
I guess my beatings will continue until I get it right! 😉 ---
**Author:** ![Topologist](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/topologist/32/3208_2.png) [@Topologist](https://boards.straightdope.com/u/Topologist)\ **Post date:** [August 7, 2025, 4:49pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/898 "2025-08-07T16:49:41Z")
LaTeX is permissible in text in the absence of \LaTeX. I go back to the days of \TeX, before \LaTeX. For my own purposes, I’ve written a Javascript (limited) \LaTeX to MathML converter, so I’ve had to become somewhat familiar with how various browsers do or do not handle MathML. ---
**Author:** ![What\_Exit](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/what_exit/32/10652_2.png) [@What\_Exit](https://boards.straightdope.com/u/What_Exit)\ **Post date:** [August 7, 2025, 4:59pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/899 "2025-08-07T16:59:49Z")
> [@LSLGuy](#): > > I guess my beatings will continue until I get it right! Nope, that is for morale, not getting things right. ---
**Author:** ![Timz](https://avatars.discourse-cdn.com/v4/letter/t/6a8cbe/32.png) [@Timz](https://boards.straightdope.com/u/Timz)\ **Post date:** [August 7, 2025, 7:19pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/900 "2025-08-07T19:19:37Z")
\\tan Zn = \\frac {\\sin LHA}{\\cos LHA \\sin L - \\cos L \\tan d} ---
**Author:** ![Timz](https://avatars.discourse-cdn.com/v4/letter/t/6a8cbe/32.png) [@Timz](https://boards.straightdope.com/u/Timz)\ **Post date:** [August 8, 2025, 4:16pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/901 "2025-08-08T16:16:49Z")
> **[Geographical distance](https://en.wikipedia.org/wiki/Geographical_distance#Lambert%E2%80%99s_formula_for_long_lines)** > > Geographical distance or geodetic distance is the distance measured along the surface of the Earth, or the shortest arch length. > The formulae in this article calculate distances between points which are defined by geographical coordinates in terms of latitude and longitude. This distance is an element in solving the second (inverse) geodetic problem. > Calculating the distance between geographical coordinates is based on some level of abstraction; it does not provide an exact distance, which is ... ---
**Author:** ![Bullitt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bullitt/32/5725_2.png) [@Bullitt](https://boards.straightdope.com/u/Bullitt)\ **Post date:** [August 11, 2025, 5:54pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/902 "2025-08-11T17:54:51Z")
Testing these 2… ✅ ⭕ • ✅ And, in a list? ⭕And, in a list? ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [August 11, 2025, 7:00pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/903 "2025-08-11T19:00:35Z")
You may not have noticed this, but if you put 1 or more emoticons on a line with no other characters, including no whitespace, they come out large: ⭕ ✅ But if you put any other characters on the same line, they come out small: ⭕✅ I slipped a Space in between them just above. A trailing space won’t work to trigger small, but a trailing ` ` AKA non-breaking space will trigger small without messing up the visible spacing. Compare space between with nbsp at the end: ⭕✅ ⭕✅  Emoticons work fine in lists; they’re just another character from Discourse’s POV. - ⭕ blah - ✅ blah2 - 💩 blah3 ---
**Author:** ![Bullitt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bullitt/32/5725_2.png) [@Bullitt](https://boards.straightdope.com/u/Bullitt)\ **Post date:** [August 18, 2025, 4:08pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/904 "2025-08-18T16:08:44Z")
I’ll look at that, thanks @LSLGuy . I’m testing an imgur image. [![](https://i.imgur.com/FFGzLxC.jpeg) ](https://i.imgur.com/FFGzLxC.jpeg) ---
**Author:** ![Bullitt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bullitt/32/5725_2.png) [@Bullitt](https://boards.straightdope.com/u/Bullitt)\ **Post date:** [August 25, 2025, 9:09am UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/905 "2025-08-25T09:09:24Z")
Multiple replies ★ ➙ ➞ blah blah blah #1 ★ ➙ ➞ blah blah blah #2 ★ ➙ ➞ blah blah blah #3 ★ ➙ ➞ blah blah blah #4 ✅ Okay I’ll try that in a coming post. ---
**Author:** ![Mean\_Mr.Mustard](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mean_mr.mustard/32/3865_2.png) [@Mean\_Mr.Mustard](https://boards.straightdope.com/u/Mean_Mr.Mustard)\ **Post date:** [September 7, 2025, 2:38pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/906 "2025-09-07T14:38:45Z")
Well, that didn’t work. (tried to blur text within a poll) ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [September 7, 2025, 2:46pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/907 "2025-09-07T14:46:57Z")
Interesting. It works in Markdown preview mode or WYSIWYG editor mode but not in the real post. ---
**Author:** ![pjd](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pjd/32/3009_2.png) [@pjd](https://boards.straightdope.com/u/pjd)\ **Post date:** [September 7, 2025, 4:50pm UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/908 "2025-09-07T16:50:52Z")
Nm ---
**Author:** ![Mean\_Mr.Mustard](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mean_mr.mustard/32/3865_2.png) [@Mean\_Mr.Mustard](https://boards.straightdope.com/u/Mean_Mr.Mustard)\ **Post date:** [September 8, 2025, 1:44am UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/909 "2025-09-08T01:44:41Z")
Never you mind. ---
**Author:** ![outlierrn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/outlierrn/32/3005_2.png) [@outlierrn](https://boards.straightdope.com/u/outlierrn)\ **Post date:** [September 8, 2025, 5:12am UTC](https://boards.straightdope.com/t/test-thread-to-test-things-out-do-not-lock/956736/910 "2025-09-08T05:12:10Z")
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