cscd — Computes the element-wise cosecant of the argument given in degree.
x = cscd(x)
The entries of y are the cosecant
1/sin of the entries of x given in
degree. The results are real and in ]-%inf -1] U [1
%inf[. or entries equal to n*180 with
n integer, the result is infinite (or an error
depending on ieee mode). For entries equal to
n*90with n integer and odd the
result is exactly 1 or -1.