How to plot convolution of 2 functions
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if i have a y1 function of t , and y2 function of t and i want to plot convolution of y1 and y2 with time, how to do that it gives me length error
3 个评论
madhan ravi
2018-12-20
share your code
Mohamed H
2018-12-20
vishal raj
2019-11-20
plot(output)
采纳的回答
madhan ravi
2018-12-20
编辑：madhan ravi
2018-12-20
syms t
y1=3*t+5;
y2=4*t^2+1;
fplot(y1*y2)
%edit after Brunos suggestion it’s not possible to represent the convolution for these functions
6 个评论
Mohamed H
2018-12-20
madhan ravi
2018-12-20
Anytime :)
Bruno Luong
2018-12-20
编辑：Bruno Luong
2018-12-20
Careful, the solution provided by ravi is discrete convolution.
Your functions actually doesn't have finite (continuous) convolution, they are not integrable on any standard function space.
You change the t vector (length/step) you'll see the values of the discrete convolution is not stable.
So what is the result? I think it's mostly garbage.
madhan ravi
2018-12-20
yes completely agree with Bruno , so how can it be plotted?
Bruno Luong
2018-12-20
It cannot be plotted. The convolution is not defined for those functions.
madhan ravi
2018-12-20
Thanks Bruno for making it loud and clear.
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