This function calculates the cosecant of specified complex number.
IMCSC(complex_num)
The complex_num argument is a complex number to return the 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.
IMCSC("13+3i") gives the result 0.0420
IMCSC("7+2i") gives the result 0.1819