# Generating a Symbol Similar to \Delta [duplicate]

I know how to generate the symbol \Delta. But is there a way to generate the similar triangle symbol underlined in pink:

• \mathnormal{\Delta} – egreg Apr 17 '17 at 15:17
• This doesn't seem to work on, i.e., math.stackexchange. – George Apr 17 '17 at 15:19
• Is this a LaTeX or MathJax question? – TeXnician Apr 17 '17 at 15:33
• @George MathJax is not TeX, it only shares (part of) the syntax. – egreg Apr 17 '17 at 19:44