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I want to integrate this function

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khaled Abdelghafar
khaled Abdelghafar 2022-3-20
回答： Star Strider 2022-3-20
x=0:50;
y=exp(-x./25).*sqrt((25+x)/(25-x));
int(y,x,0,50)
i want to integrate this function

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Star Strider
Star Strider 2022-3-20
Ran in:
Use the integral function —
x = 0:50;
y = @(x) exp(-x./25).*sqrt((25+x)/(25-x));
int_y = integral(y,0,50)
int_y = 0.0000 + 21.6166i
The cumtrapz (or trapz) function is another option:
x = 0:50;
y = @(x) exp(-x./25).*sqrt((25+x)/(25-x));
int_y = cumtrapz(x,y(x));
figure
plot(x, real(int_y), x,imag(int_y))
grid
legend('Real','Imaginary', 'Location', 'best')
.

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