add hyperbolic functions

[aplavin]

Unlike circular functions, these are invertible

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.27%. Comparing base (5d998dc) to head (bac50cc).

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #47      +/-   ##
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+ Coverage   99.22%   99.27%   +0.04%     
==========================================
  Files           6        6              
  Lines         129      137       +8     
==========================================
+ Hits          128      136       +8     
  Misses          1        1              

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[oschulz]

Could you take a look at the Julia v1.0 test failures?

[oschulz]

Any objections from your side @devmotion ?

[oschulz]

@aplavin , want to add a version bump?

[aplavin]

Nice!
Just for a bit of context – I wanted to make a plot with the asinh scale (it's like symlog, but smooth). Naturally, plotting needs the inverse for certain purposes.
With InverseFunctions it's very easy: the forward scale function is f = @o a * asinh(_/a), the inverse is inverse(f). No need to manually think of the proper multiplications/divisions in the inverse, this is a great piece of functionality!

Not too bad even without these inverses defined btw: f = @o a * setinverse(asinh, sinh)(_/a) always works.

[oschulz]

Nice @aplavin ! :-)

Ok, here we go: JuliaRegistries/General#105631