Python | Numpy np.ifft() method (original) (raw)

Last Updated : 21 Nov, 2019

With the help of **np.ifft()** method, we can get the 1-D Inverse Fourier Transform by using np.ifft() method.

Syntax : np.ifft(Array)
Return : Return a series of inverse fourier transformation.

Example #1 :
In this example we can see that by using np.ifft() method, we are able to get the series of inverse fourier transformation by using this method.

import numpy as np

a = np.array([ 5 , 4 , 6 , 3 , 7 ])

gfg = np.fft.ifft(a)

print (gfg)

Output :

[ 5. + 0.j 0.2236068 – 0.21796276j -0.2236068 – 0.92330506j
-0.2236068 + 0.92330506j 0.2236068 + 0.21796276j]

Example #2 :

import numpy as np

a = np.array([ - 5.5 , 4.4 , - 6.6 , 3.3 , - 7.7 ])

gfg = np.fft.ifft(a)

print (gfg)

Output :

[-2.42 + 0.j -0.77 + 1.13774197j -0.77 + 3.30553221j -0.77 – 3.30553221j
-0.77 – 1.13774197j]

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