How to calculate Fourier transform for exponential function without using FFT.

How to calculate Fourier transform for above figure without using FFT.

Answer 1

[Abhijeet]

Hi, sharmin

I have attached some useful hyperlinks to calculate "Fourier transform" without using FFT.

I kindly encourage you to visit them :

https://in.mathworks.com/matlabcentral/answers/810215-fft-without-inbuilt-functions?s_tid=answers_rc1-1_p1_BOTH

https://in.mathworks.com/matlabcentral/answers/216563-how-to-write-fast-fourier-transform-function-without-using-fft-function

Answer 2

[Chunru]

syms x
f(x) = exp(-x.^2)

f(x) = 

y = fourier(f)

y =