Plotting multiple functions in the same graph
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Moslem Uddin
am 14 Apr. 2020
Kommentiert: Walter Roberson
am 22 Apr. 2020
I want to plot two different functions in a same graph for different values of a parameter.
I tried the following code:
clc
clear all
syms y
t=[1 5];
for i=1:length(t)
U=exp(-y)*sin(t(i));
fplot(U,y,[0,5]); hold on;
U1=exp(-y)*cos(t(i));
fplot(U1,y,[0,5]); hold on;
end
Is that alright?
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Walter Roberson
am 14 Apr. 2020
syms y
t=[1 5];
for i=1:length(t)
U=exp(-y)*sin(t(i));
fplot(U,[0,5]); hold on;
U1=exp(-y)*cos(t(i));
fplot(U1,[0,5]);
end
hold off
Or you could
syms y
t=[1 5];
for i=1:length(t)
U=exp(-y)*sin(t(i));
U1=exp(-y)*cos(t(i));
fplot([U,U1],[0,5]);
hold on
end
hold off
5 Kommentare
Walter Roberson
am 22 Apr. 2020
If your t is fixed length, you can "unroll the loop", just putting all of the instructions in a row:
syms y
t=[1 5];
U=exp(-y)*sin(t(1));
fplot(U,[0,2]); hold on;
U1=exp(-y)*cos(t(1));
fplot(U1,[2,5]);
U=exp(-y)*sin(t(2));
fplot(U,[0,2]);
U1=exp(-y)*cos(t(2));
fplot(U1,[2,5]);
hold off
I think you will find that the for loop was contributing negligible time compared to the time required to do the fplot().
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