What is a symbol in Sympy

This recipe explains what is a symbol in Sympy

Recipe Objective - What is a symbol in Sympy?

The symbol is the main class of the symPy library. Symbolic calculations are done with symbols. SymPy variables are objects of the Symbol class.

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The argument to the Symbol() function is a string containing a symbol that can be assigned to a variable:

# Example 1

# Importing libraries
from sympy import Symbol

# Defining sympy Symbol
p = Symbol('p')
q = Symbol('q')

# Defining some expression
expression = (p**2)+(q**3)

expression

Output - 
๐‘2+๐‘ž3

# Example 2

# Importing libraries
from sympy import Symbol

# Defining sympy Symbol
l = Symbol('length')
b = Symbol('breadth')

# Defining some expression
expression = (l**2)+(b**2)

expression

Output - 
๐‘๐‘Ÿ๐‘’๐‘Ž๐‘‘๐‘กโ„Ž2+๐‘™๐‘’๐‘›๐‘”๐‘กโ„Ž2

# Example 3

# Importing libraries
from sympy.abc import p,q

# Defining some expression
expression = (p**2)+(q**3)

expression

Output - 
๐‘2+๐‘ž3

In this way, we can use symbols in sympy.

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