I'd like to commit the following fix to
(6) -> asin(1.0+0.0*%i)
>> Error detected within library code:
catdef: division by zero
due to Francois to trigcat.spad
asin x ==
one? x => 2*atan 1
one?(-x) => -2*atan 1
atan(x/sqrt(1-x^2))
OK?
Martin
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