Definite integral with an exponential

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Pilar Jiménez
Pilar Jiménez 2017-1-18
评论： Star Strider 2017-1-23
I need to integrate this function f=wn.*exp(1i.*2.*pi.*t) to get the numerical result, where the variable function is t, and wn=1. Evalue limits are 0 to 0.9. Can somebody help me?

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Star Strider
Star Strider 2017-1-18
Your question seems to have changed. With respect to ‘wn(t)’ see my Comment in your original Question.
Try this:
syms wn t u_lim wn(t)
wn(t) = sym(1);
f = wn*exp(1i*2.*pi*t);
cplx_int = int(f, t, 0, 0.9)
cplx_int_n = vpa(cplx_int)
abs_cplx_int_n = abs(cplx_int_n)
cplx_int =
-(5^(1/2)*1i + (10 - 2*5^(1/2))^(1/2) - 3i)/(8*pi)
cplx_int_n =
- 0.093548928378863903321291906615298 + 0.03039588939177436951706748797891i
abs_cplx_int_n =
0.098363164308346596734748787414694
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Pilar Jiménez
Pilar Jiménez 2017-1-23
Good day, I want to apologize to you because it seems to have an incorrect data that made my integral did not show the expected result. The problem has already been solved, thank you very much for your help.
Star Strider
Star Strider 2017-1-23
My pleasure.
If my Answer helped you solve your problem, please Accept it!

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