I'd like to use a colon-equals sign symbol to indicate a definition. According to The Comprehensive LaTeX Symbol List, this symbol is available in the txfonts (LaTeX) package. However, it seems that the txfonts support in ConTeXt doesn't contain that symbol. And, in any case, a search for \coloneqq on the wiki gave no results. Perhaps the symbol I want isn't called coloneqq in ConTeXt, or perhaps the symbol is currently missing. How can I get this symbol in my ConTeXt document? Thanks for your help, Jesse -- Jesse Alama (alama@stanford.edu)
On Fri, 14 Sep 2007, Jesse Alama wrote:
I'd like to use a colon-equals sign symbol to indicate a definition. According to The Comprehensive LaTeX Symbol List, this symbol is available in the txfonts (LaTeX) package. However, it seems that the txfonts support in ConTeXt doesn't contain that symbol. And, in any case, a search for \coloneqq on the wiki gave no results. Perhaps the symbol I want isn't called coloneqq in ConTeXt, or perhaps the symbol is currently missing. How can I get this symbol in my ConTeXt document?
The symbol is called \colonequals. Other colon symbols are (from math-ext.tex) %D \macros %D {centercolon, colonminus, minuscolon, colonequals, equalscolon, %D colonapprox, approxcolon, colonsim, simcolon, coloncolon, %D coloncolonminus, minuscoloncolon, coloncolonequals, %D equalscoloncolon, coloncolonapprox, approxcoloncolon, %D colonsim, simcoloncolon} %D %D In $a := b$ the colon is not vertically centered with the equal %D to. Also the distance between colon and equal to is a bit large. %D So, we define a vertically centered colon \tex {centercolon} and %D a few macros for colon and double colon relation symbols. %D %D \startlines %D \formula {A \centercolon B} %D \formula {A \colonminus B} %D \formula {A \minuscolon B} %D \formula {A \colonequals B} %D \formula {A \equalscolon B} %D \formula {A \colonapprox B} %D \formula {A \approxcolon B} %D \formula {A \colonsim B} %D \formula {A \simcolon B} %D \formula {A \coloncolon B} %D \formula {A \coloncolonminus B} %D \formula {A \minuscoloncolon B} %D \formula {A \coloncolonequals B} %D \formula {A \equalscoloncolon B} %D \formula {A \coloncolonapprox B} %D \formula {A \approxcoloncolon B} %D \formula {A \colonsim B} %D \formula {A \simcoloncolon B} %D \stoplines The naming is after colonequals.sty rather than mathtools.sty. I find these names easier to remember, but if you want mathtools type names, it is easy to create aliases by \let\coloneqq=\colonequals and so on. Perhaps it is time to create a comprehensive math symbol list for ConTeXt also.... Aditya
Jesse Alama wrote:
I'd like to use a colon-equals sign symbol to indicate a definition. According to The Comprehensive LaTeX Symbol List, this symbol is available in the txfonts (LaTeX) package. However, it seems that the txfonts support in ConTeXt doesn't contain that symbol. And, in any case, a search for \coloneqq on the wiki gave no results. Perhaps the symbol I want isn't called coloneqq in ConTeXt, or perhaps the symbol is currently missing. How can I get this symbol in my ConTeXt document?
ConTeXt has \colonequals and \coloncolonequals. I assume one of those is the one you want. Best wishes, Taco
participants (3)
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Aditya Mahajan -
Jesse Alama -
Taco Hoekwater