Equations with Variables & User input

Hi!

I am attempting to write a program that analyzes a circuit that is decribed with user input.. My attempt is to get the user input and create a system of equations from that input.. But I am unsure how to get equations with variables that I am solving for in matlab..

Doing by hand I would end up with something like, (v1-v2)/5 + (v2-v3)/10= 1

and then I would need it to be 0.2v1-0.1v2-0.1v3=1

Any ideas on how to get matlab to do that?

Will it work if I use the Syms function for the variables I am solving for?

Thanks!

Answer 1

[darova]

Use coeffs

syms x y z
eqn = (x + 2*y + 10*z)/2;
[c,t] = coeffs(eqn)
sum(c.*t)

Also try

simplify(eqn)