Returns the cosecant of a complex number.
Syntax
IMCSCH( z )
where z is a complex number
Semantics
IMCSCH( z ) is equivalent to IMDIV(1, IMSINH(z)).
To get better accuracy it is not implemented that way. With the notation IMCSCH("a+bj")="c+dj" the used formulas are
real part
imaginary part