7 #include "cl_complex.h"
15 const cl_N operator- (const cl_N& x, const cl_N& y)
18 // x,y beide reell -> klar.
19 // x=a, y=b+ci -> (a-b)+(-c)i
20 // x=a+bi, y=c -> (a-c)+bi
21 // x=a+bi, y=c+di -> (a-c)+(b-d)i
30 var const cl_R& a = x;
31 var const cl_R& b = realpart(y);
32 var const cl_R& c = imagpart(y);
33 return complex_C(a-b,-c);
40 var const cl_R& a = realpart(x);
41 var const cl_R& b = imagpart(x);
42 var const cl_R& c = y;
43 return complex_C(a-c,b);
47 var const cl_R& a = realpart(x);
48 var const cl_R& b = imagpart(x);
49 var const cl_R& c = realpart(y);
50 var const cl_R& d = imagpart(y);
51 return complex(a-c,b-d);