var('x,y,z,z1')
z=x+y*I
z1=x-y*I
w=2*I*z+6*z1
u=w.real_part()
v=w.imag_part()
u(1/2,4)
v(1/2,4)

Kreyszig-12.3-2 (last edited 2010-12-16 12:35:27 by xxx)