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Math-equation: How I can have an equal sign with a triangle above?

asked 2016-10-15 12:45:44 +0200

BasilePa gravatar image

This is the symbol of "by definition equal". I do not want to use the existing equal sign with the first three letters of the word def-inition. The mathematical symbol should not contain language specific words.

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answered 2016-10-15 15:30:17 +0200

Regina gravatar image

updated 2016-10-15 15:33:29 +0200

You are looking for the symbol U+225C. It is not contained in OpenSymbol. So first you need to find a font, which contains a glyph for this character. I've got more than 10 fonts in my font collection, which contain a glyph for U+225C. If you will publish the text in web too, you might go with one of the MathJax fonts, if you are on Windows "Segoe UI Symbol" might work for you. Other candidates are "Lucida Sans Unicode", "STIX", or "Arial Unicode MS".

Next step is to add this character to the Math catalog, the Symbol Set. See chapter "Catalog customization" in the Math guide tells you how to do that. It gets the name Ux225C for example. https://wiki.documentfoundation.org/i...

If you want to generate MathML and generate a <mo>-element, then you should use it as operator, e.g (f+g)(x) boper %Ux225C f(x)+g(x).

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Thank you, It works. It will be nice if I can add it in one of the Math drop down menus. It will be nicer if There is a graphical interface like the MathType.

BasilePa gravatar imageBasilePa ( 2016-10-15 16:10:29 +0200 )edit
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answered 2016-10-15 14:45:29 +0200

pierre-yves samyn gravatar image

Hi

I think you can also use ToolsSymbolsEdit to add

screenshot

Regards

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answered 2016-10-15 14:34:09 +0200

RGB-es gravatar image

Try with something like this:

{ "=" } csup{%DELTA}

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Asked: 2016-10-15 12:45:44 +0200

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Last updated: Oct 15 '16