COMPLEXFD  - Subroutines to perform operations on double complex numbers.
		This set of functions complement the one in complexd.c
		of the CWP library

dcipow		raise a double complex number to an integer power
dcrpow		raise a double complex number to a real power
rdcpow		raise a real number to a double complex power
dcdcpow		raise a double complex number to a double complex power
dccos		compute the double complex cosine of a double complex angle
dcsin		compute the double complex sine of a double complex angle
dccosh		compute the double complex hyperbolic cosine of a double complex angle
dcsinh		compute the double complex hyperbolic sine of a double complex angle
dcexp1		compute the double complex exponential of a double complex number
dclog		compute the double complex logarithm of a double complex number
Function Prototypes:
dcomplex dcipow(dcomplex a, int p);
dcomplex dcrpow(dcomplex a, float p);
dcomplex rdcpow(float a, dcomplex p);
dcomplex dcdcpow (dcomplex a, dcomplex p)
dcomplex dccos(dcomplex a);
dcomplex dcsin(dcomplex a);
dcomplex dccosh(dcomplex a);
dcomplex dcsinh(dcomplex a);
dcomplex dcexp1(dcomplex a);
dcomplex dclog(dcomplex a);
Credits:
	Dave Hale, original version in C++
	Gabriel Alvarez, translation to C