It looks like sech and csch are already there. We definitely should have all the combinations of trig, arctrig, hyperbolic, and archyperbolic functions.
Aaron Meurer On Fri, Feb 13, 2015 at 6:07 AM, Arnaud Usciati <[email protected]> wrote: > Hello, > > I propose to add the following hyperbolic functions in order to complete > sympy. If f is a function : > sech(f) = 1/cosh(f) > csch(f) = 1/sinh(f) > asech(f) = acosh(1/f) > acsch(f) = asinh(1/f) > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/ce93e483-9152-4c2b-95c9-9aafb3d821ee%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6JLP-sLC7SzertxUDWwEyq6dQS77H-f0hha98N3HqaYEA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
