(Forgot to reply all …) Assuming what you are referring to is the "LaTeX and TeX inspired keybindings" for DrRacket (https://docs.racket-lang.org/ drracket/Keyboard_Shortcuts.html#%28part._.La.Te.X_and_. Te.X_inspired_keybindings%29), you can insert the character "θ" by typing "\theta", then, with the insertion point positioned at the end of the "\theta", holding down the control key while pressing the \ key.
Note that this is not the only way to enter characters like "θ" into DrRacket: you can also copy and paste text containing theta, use a keyboard mapping at the operating-system level that supports Greek letters, or use the "Emoji & Symbols" viewer on Mac OS, among other methods. Once you are able to enter θ, you can define it as the name for some value in the same way as any other identifier, e.g.: #lang racket (define θ "Hi") (string-append θ ", world!") -Philip On Wed, Apr 18, 2018 at 1:23 PM, <disaacmu...@gmail.com> wrote: > I saw the oficial Racket list of all the LaTeX thing and made some > research, but I don't get it. > > Can someone please explain me how to digite the greek letter Theta for > example? And how to use it as the mathematical Theta function if that's > possible? > > Thank you a lot in advance! > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
