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

Last Updated : 21 Nov, 2019

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

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

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

import numpy as np

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

gfg = np.fft.fft(a)

print (gfg)

Output :

[25. + 0.j 1.11803399 + 1.08981379j -1.11803399 + 4.61652531j
-1.11803399 – 4.61652531j 1.11803399 – 1.08981379j]

Example #2 :

import numpy as np

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

gfg = np.fft.fft(a)

print (gfg)

Output :

[-12.1 + 0.j -3.85 – 5.68870985j -3.85 – 16.52766106j
-3.85 + 16.52766106j -3.85 + 5.68870985j]

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