I am trying to identify the font used for the integral sign and letter x here:

enter image description here

Any ideas?

  • 3
    My guess is that is not an x, but more likely a \kappa, similar to commons.wikimedia.org/wiki/… – Steven B. Segletes Dec 1 '20 at 15:31
  • do you have the pdf for that formula? (if so you can list the fonts exactly) – David Carlisle Dec 1 '20 at 15:44
  • @DavidCarlisle No. Just that picture. – Robert W. Dec 1 '20 at 15:45
  • 1
    Note that the kappa symbol is slanted after d, but it is unslanted after sin, cos. It seems that your picture is a result of typesetting work of an amateur. The integral symbol is from bold variant of a math font but the rest isn't. – wipet Dec 1 '20 at 15:46
  • 3
    @RobertW. My tip is that this is not TeX (i.e. no LaTeX, no latex package). There are slanted/unslanted version of kappa, the spaces between sin, cos and their arguments are missing, there is a mix of bond/nobold symbols. Of course, I am able to do such obscure things by TeX, but it is more complicated task:). – wipet Dec 1 '20 at 15:57

I think this is the symbol \varkappa (you need the package amssymb).

  • 1
    which seems to look like ϰ and ϰ when slanted – Henry Dec 2 '20 at 2:13

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.