Trig functions

[Paul C. Anagnostopoulos]

Folks,

We have a full compliment of trig, inverse trig, and hyperbolic operations, except for:

acot
coth
acsc
csch

We are also missing the inverse hyperbolic operations:

asinh
acosh
atanh
acoth
asech
acsch

Should we provide any of these? If so, what about the ones that are complex over some range of arguments?

~~ Paul


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