Info

This question is closed. Reopen it to edit or answer.

Hi Guys! Please can someone help me plot JUST THE REAL (not imaginary) part of this two differential equations, here is my code? Thank you.

1 view (last 30 days)
syms I_1(t) I_2(t)
ode1 = diff(I_1) == ((12*exp(60*1i*t))-(10*I_1)-(0.9*I_2))/0.1;
ode2 = diff(I_2) == ((-0.9*I_1)-(10*I_2))/10;
odes = [ode1; ode2];
S = dsolve(odes);
I_1Sol(t) = S.I_1;
I_2Sol(t) = S.I_2;
[I_1Sol(t), I_2Sol(t)] = dsolve(odes);
cond1 = I_1(0) == 0;
cond2 = I_2(0) == 1;
conds = [cond1; cond2];
[I_1Sol(t), I_2Sol(t)] = dsolve(odes,conds);
fplot(I_1Sol)
hold on
fplot(I_2Sol)
grid on
legend('I_1Sol','I_2Sol','Location','best')

Answers (1)

Karan Gill
Karan Gill on 15 Nov 2017
Use the real function.
fplot(real(I_1Sol))
Does this give the expected plot?
Karan.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by