Python | sympy.is_nonpositive() method

Python | sympy.is_positive() method

Last Updated : 08 Feb, 2023

In sympy module, we can test whether a given number n is positive or not using sympy.is_positive() function.

Syntax:  sympy.is_positive(n)
Parameter:  n; number to be tested
Return:  bool value result

Code #1:

Python3

# Python program to check positive number 
# using sympy.is_positive() method

# importing sympy module
from sympy import *

# calling is_positive function on different numbers
geek1 = simplify(-21).is_positive
geek2 = simplify(0).is_positive

print(geek1)
print(geek2)

Output:

False
True

Code #2:

Python3

# Python program to check positive  number 
# using sympy.is_positive() method

# importing sympy module
from sympy import *

# calling is_positive function on different numbers
geek = simplify(-0o2).is_positive

print(geek)

Output:

False

Code #3:

The sum of two positive terms is positive

Python3

# importing sympy library
from sympy import *
from sympy import symbols
a, b = symbols('a, b', positive=True)

geek = a + b

print(geek.is_positive)

Output:

True

Python | sympy.is_nonpositive() method

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Article Tags :

Python
SymPy

Practice Tags :

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