The actual translation of the equation is > (1+ (exp (complex 0 pi))) #C(0.0d0 0.0d0) But you got > (1+ (exp (complex 0 pi))) #C(0.0d0 1.2246

The actual translation of the equation is > (1+ (exp (complex 0 pi))) #C(0.0d0 0.0d0) But you got > (1+ (exp (complex 0 pi))) #C(0.0d0 1.2246467991473532d-16) Which is not “precisely the same”. Hence my confusion.