Integration of exponential function

Hello,
I am trying to do the integration of the integral below. I am expecting help. Thanks!

回答(1 个)

syms t y(x)
f = y(x)*exp(-2*(t-x)) ;
int(f,x,0,t)
ans = 

2 个评论

Thank you for quick response. The both variable x and t runs from 0 to 20 (say). For the value of x equal to 1, 4, 7 y(x) is equal to value 5 (say). y(x) is equal to 0 at other values of x. How do I insert this condition in above integral to calculate y(t)? Any advice is appreciated.
If you got answer please share here.

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