Python | sympy.simplify() method

With the help of sympy.simplify() method, we can simplify any mathematical expression.

Syntax: simplify(expression) 

Parameters:
expression – It is the mathematical expression which needs to be simplified. 

Returns: Returns a simplified mathematical expression corresponding to the input expression.

Example #1: In this example we can see that by using sympy.simplify() method, we can simplify any mathematical expression. 

Python3

# import sympy
from sympy import *

x = symbols('x')
expr = sin(x)**2 + cos(x)**2

print("Before Simplification : {}".format(expr))

# Use sympy.simplify() method
smpl = simplify(expr)

print("After Simplification : {}".format(smpl))

Output:

Before Simplification : sin(x)**2 + cos(x)**2
After Simplification: 1

Example #2:

Python3

# import sympy
from sympy import *

x = symbols('x')
expr = (x**3 + x**2 - x - 1)/(x**2 + 2 * x + 1)

print("Before Simplification : {}".format(expr))

# Use sympy.simplify() method
smpl = simplify(expr)

print("After Simplification : {}".format(smpl))

Output:

Before Simplification : (x**3 + x**2 - x - 1)/(x**2 + 2*x + 1)
After Simplification : After Simplification : x - 1