How to include math Symbols in Editor or Textbox

I have to include math symbols in my asp.net

so whatever the symbols it may be sigma , integral , pie etc..or any

how to wri开发者_StackOverflowte or display the Symbols in asp.net it should be UI so when the user click the

particular Symbols it will display in the textbox or any editor control..

If anyone have idea let me know...?

thanks.

Since you are using ASP.NET you can use the HTML character entity references to display symbols.

http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references

Updated

You can just put the special characters into your html code. Prefix the items from the reference with "&#" and suffix with ";"

∫ dy K(x,y)φ(y) = λφ(x)

yields

∫ dy K(x,y)φ(y) = λφ(x)