# Why can't I write down tilde? Is there any MathJax syntax?

In an answer, I wanted to write ∼, but that wasn’t showing. I think it wasn’t showing for Markdown.

So I thought I should use \tilde, but it came on top of the next letter. How can I write down tilde in MathJax?

∼ is a small space, while \tilde{} is an ornament of a character. Use instead e.g. \sim. More generally, for such LaTeX questions, check out Detexify.
• Minor note: if the spacings don't look right, use {\sim}. The bare \sim is a binary operator and is spaced accordingly, which might be too much space for several common applications. Feb 21 at 9:55
• $\uparrow$ Good point.