How to compare two algebraic expressions in Sympy

This recipe helps you compare two algebraic expressions in Sympy

Recipe Objective - How to compare two algebraic expressions in Sympy?

SymPy expressions are compared with equals() function.

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Example:

# Importing libraries
from sympy import pprint
from sympy.abc import p,q

# Defining some expressions
exp1 = (p + q)**2
exp2 = (p**2)+(2*p*q)+(q**2)

# Printing both expressions
pprint(exp1)
pprint(exp2)

# Comparing both expressions
exp1.equals(exp2)

Output - 
       2
(p + q) 
 2            2
p  + 2.p.q + q 
True

# Importing libraries
from sympy import pprint, sin, cos
from sympy.abc import p

# Defining some expression
exp1 = (sin(p)**2) + (cos(p)**2)
exp2 = 2

# Printing both expressions
pprint(exp1)
pprint(exp2)

# Comparing both expressions
exp1.equals(exp2)

Output - 
   2         2   
sin (p) + cos (p)
2
False

In this way, we can compare two expressions in sympy.

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