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Python | Scipy integrate.dblquad() method

  • Difficulty Level : Expert
  • Last Updated : 23 Jan, 2020

With the help of scipy.integrate.dblquad() method, we can get the double integration of a given function from limit a to b by using scipy.integrate.dblquad() method.

Syntax : scipy.integrate.dblquad(func, a, b)

Return : Return the double integrated value of a polynomial.

Example #1 :
In this example we can see that by using scipy.integrate.dblquad() method, we are able to get the double integration of a polynomial from limit a to b by using this method.




# import scipy.integrate.dblquad
from scipy import integrate
  
gfg = lambda y, x: x * y**2
  
# using scipy.integrate.dblquad() method
geek = integrate.dblquad(gfg, 0, 3, lambda x: 0, lambda x: 1)
  
print(geek)

Output :

1.4999999999999998

Example #2 :




# import scipy.integrate.dblquad
from scipy import integrate
gfg = lambda y, x: x * y**2 + 2 * x*y + 4
  
# using scipy.integrate.dblquad() method
geek = integrate.dblquad(gfg, 1, 4, lambda x: 0, lambda x: 1)
  
print(geek)

Output :

21.999999999999996

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