sympy.integrals.transforms.cosine_transform() in python
With the help of cosine_transform() method, we can compute the cosine transformation and return the transformed function by using this method.
cosine transformation
Syntax : cosine_transform(f, x, k, **hints)
Return : Return the transformed function.
Example #1 :
In this example we can see that by using cosine_transform() method, we are able to compute the cosine transformation and return the transformed function.
Python3
from sympy import cosine_transform, exp, sqrt, cos
from sympy.abc import x, k, a
gfg = cosine_transform(exp( - a * x), x, k)
print (gfg)
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Output :
sqrt(2)*a/(sqrt(pi)*(a**2 + k**2))
Example #2 :
Python3
from sympy import cosine_transform, exp, sqrt, cos
from sympy.abc import x, k, a
gfg = cosine_transform(exp( - a * x), x, 5 )
print (gfg)
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Output :
sqrt(2)*a/(sqrt(pi)*(a**2 + 25))
Last Updated :
10 Jul, 2020
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