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Python | sympy.expand() method

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  • Last Updated : 12 Jun, 2019
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With the help of sympy.expand() method, we can expand the mathematical expressions in the form of variables by using sympy.expand() method.

Syntax : sympy.expand(expression)
Return : Return mathematical expression.

Example #1 :
In this example we can see that by using sympy.expand() method, we can get the mathematical expression with variables. Here we use symbols() method also to declare a variable as symbol.




# import sympy
from sympy import expand, symbols
  
x, y = symbols('x y')
gfg_exp = x + y
  
# Use sympy.expand() method
exp = sympy.expand(gfg_exp**2)
  
print(exp)

Output :

x**2 + 2*x*y + y**2

Example #2 :




# import sympy
from sympy import expand, symbols
  
x, y, z = symbols('x y z')
gfg_exp = x + y + z
  
# Use sympy.expand() method
exp = sympy.expand(gfg_exp**2)
  
print(exp)

Output :

x**2 + 2*x*y + 2*x*z + y**2 + 2*y*z + z**2

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