This function calculates the hyperbolic cosecant of specified complex number.
IMCSCH(complex_num)
The complex_num argument is a complex number to return the hyperbolic cosecant for.
An error is returned if the complex_num argument is not in the form "x+yi" or "x+yj".
Accepts numeric and string data. Returns string data.
IMCSCH("15+i") gives the result 3.3055
IMCSCH("8+4i") gives the result -0.0004