Python | sympy.expand() method

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 expand() method from sympy
exp = 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 expand() method from sympy
exp = expand(gfg_exp**2)
print(exp)

Output :

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