Azzera filtri
Azzera filtri

how to write code for intergral with two variables?

1 visualizzazione (ultimi 30 giorni)
I want to plot this function
f={(1+cos(w))*cos(w*x)}/(pi^2-w^2)+sin(w)*sin(w*x)/(pi^2-w^2)
int(f,w,0,n)
so i wrote code for this function
ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ
x=-3:0.01:3;
syms w
A=(1+cos(w))*cos(w*x);
B=sin(w)*sin(w*x);
C=pi^2-w^2;
f=A/C+B/C;
F5=int(f,'w',0,5)
plot(x,F5)
ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ
then the process did not finish. what's wrong on my code?
and how to plot this function?

Risposte (1)

Surya Talluri
Surya Talluri il 12 Ago 2020
I understand that you are trying to get integral values at 600 values of x, which is taking so much time to run. You can use “fplot” function to plot any symbolic expressions in required interval.
syms w x
pi = sym(pi)
A=(1+cos(w))*cos(w*x);
B=sin(w)*sin(w*x);
C=pi^2-w^2;
f=A/C+B/C
F5=int(f,w,0,5)
fplot(F5, [-3, 3])

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