Slide rules are hilarious..... For my EE degree/classes, all we do is throw the numbers in a TI-89 or use Matlab. We actually refer to the 89 as "Jesus."

"What's the answer to this set of 6 simultanius equations? Let's ask Jesus."

Jesus says:

X= 3 + j5
Y = 5.4893
Z = 4.7 E-9
T = 6.34 + j.433
R = 0