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Effacer les filtres

hi I have problem do not draw curve

2 vues (au cours des 30 derniers jours)
belal hariz belgacem
belal hariz belgacem le 24 Déc 2018
We have circuit RLC.
g=Um.e^(-L/R t).cos⁡(2π/T t+φ)
Ecos(wt)
///////////////
This is our code:
w=2*pi*50;
E=5;
l=100e-6;
c=200e-6;
R=10;
t=0:0.01:300;
s=l/R;
T=2*pi*sqrt(l*c);
q=1/c*w;
v=(tan((l*w-q)/R))^-1;
g=E*cos(w*t)*exp(-s*t)*cos((2*pi/T)+v);
plot(t,g)
........
Error in Untitled (line 11)
g=E*cos(w*t)*exp(-s*t)*cos((2*pi/T)+v);

Réponse acceptée

madhan ravi
madhan ravi le 24 Déc 2018
Modifié(e) : madhan ravi le 24 Déc 2018
w=2*pi*50;
E=5;
l=100e-6;
c=200e-6;
R=10;
t=0:0.01:300;
s=l/R;
T=2*pi*sqrt(l*c);
q=1/c*w;
v=(tan((l*w-q)/R))^-1;
g=E.*cos(w.*t).*exp(-s.*t).*cos((2.*pi./T)+v); % dots between operators (element-wise operation)
plot(t,g)
xlim([0 1]) % reduce the axis limit since it's stuffed so close
Screen Shot 2018-12-24 at 9.26.50 PM.png

Plus de réponses (2)

Image Analyst
Image Analyst le 24 Déc 2018
This "works"
w=2*pi*50;
E=5;
l=100e-6;
c=200e-6;
R=10;
t = 0:0.01:300;
s=l/R;
T=2*pi*sqrt(l*c);
q=1/c*w;
v=(tan((l*w-q)/R))^-1;
g=E*cos(w*t) .* exp(-s*t) .*cos((2*pi/T)+v);
plot(t,g)
caption = sprintf('Plot of %d points', length(t));
title(caption, 'FontSize', 20);
Though with 30,0001 points, and a monitor that is only 1980 pixels across, the plot looks solid. If you reduce the number of points, you'll see something but it won't be the original signal - it will be a subsampled version and could be very deceptive to look at that and think that is what the curve looks like for an infinite number of points.
0001 Screenshot.png

belal hariz belgacem
belal hariz belgacem le 24 Déc 2018
Thank you

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