var('z')
z=x+y*I
f=1/(1-z)
u=w.real_part()
v=w.imag_part()
f(7+2*I)
u(7,2)
v(7,2)

vignan college

Kreyszig-12.3-11 (last edited 2010-12-17 09:37:01 by 172)