Group Abstract

Message Boards

WOLFRAM COMMUNITY

2.1K Views

1 Reply

3 Total Likes

View groups...

Follow this post

Share this post:

GROUPS:

NDSolve doesn't produce a smooth curve

Xiangyang Zhou

Posted 1 year ago

I was solving a parallel RLC circuit with NDSolve, for some reason, it doesn't give a smooth curve. Any suggestions? Thank you! eqn = c v''[t] + v'[t]/r + v[t]/l == 128000 Cos[6400 t + Pi/2] /. {r -> 50, l -> 10, c -> 1/640}; cond = {v[0] == 5, v'[0] == 11456}; sol4 = NDSolveValue[{eqn, cond}, v, {t, 0, 0.6}] Plot[sol4[t], {t, 0, 0.6}, PlotRange -> All]

I was solving a parallel RLC circuit with NDSolve, for some reason, it doesn't give a smooth curve. Any suggestions? Thank you!

eqn = c v''[t] + v'[t]/r + v[t]/l == 
    128000 Cos[6400 t + Pi/2] /. {r -> 50, l -> 10, c -> 1/640};
cond = {v[0] == 5, v'[0] == 11456};
sol4 = NDSolveValue[{eqn, cond}, v, {t, 0, 0.6}]
Plot[sol4[t], {t, 0, 0.6}, PlotRange -> All]

enter image description here