to find fourier transform of e^-t u(t). How do i remove this error
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syms t
>> y=ftransform(exp(-t),-20,20)
Unrecognized function or variable 'ftransform'.
>> y=fft(exp(-t),-20,20)
Error using fft
Invalid data type. First argument must be double, single, int8, uint8, int16, uint16, int32, uint32, or logical.
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Star Strider
le 24 Mar 2021
syms t omega
y = int(exp(-t).*exp(1j*omega*t), t, -20, 20)
y = simplify(y, 150)
y = rewrite(y, 'sincos')
producing:
y =
(2*sin(20*omega + 20i)*(omega - 1i))/(omega^2 + 1)
In LaTeX:
.
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