How can plot integral for sin wave
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HELLO
iam plot sin wave signal and used the code in m file:
t=0:0.1:360*22/7/180;
x1=sin(t);
plot(t,x1);
but how can plot integral for sin wave?
please help me
tech
4 个评论
Azzi Abdelmalek
2013-6-14
Can you be more specific? Definite or indefinite integral?
face wasd
2013-6-14
Wayne King
2013-6-14
Now, I'm confused. You say "how can plot integral for sin wave?" This has to be the indefinite integral. The definite integral is just a number, so do you want to plot something or do you just want a number. Did you see my response below? That finds and plots the indefinite integral.
face wasd
2013-6-14
回答（3 个）
dileep- adabala
2013-6-14
0 个投票
DO MATHEMATICAL CALCULATIONS FIRST TTHEN PLOT FOR COS WAVE
Wayne King
2013-6-14
编辑：Wayne King
2013-6-14
t=0:0.1:360*22/7/180;
x1=sin(t);
dt = t(2)-t(1);
x2 = cumsum(x1.*dt);
x2 = x2-1-x2(1);
plot(t,x2)
Or
x2 = cumtrapz(t,x1);
x2 = x2-1-x2(1);
plot(t,x2)
2 个评论
face wasd
2013-6-14
sirisha tammineni
2021-2-23
x2 = cumsum(x1.*dt);
x2 = x2-1-x2(1); sir can u explain these two lines
Samarth
2013-6-14
f=inline('sinx','x');
syms x;
y=int(f(x),x);
t=0:0.1:360*22/7/180
hold on
plot(y(t),t);
end
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