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Order Of Calculation In Python

In this article, we will discuss what should be the order of calculation when multiple operators are used in a single expression.

PEMDAS

PEMDAS is an acronym that stands for P – Parenthesis, E – Exponent, M – Multiplication, D – Division, A – Addition, S – Subtraction

It means that in a calculation first preference should be a parenthesis, followed by an exponent, and so on.

Example

Consider the following example

#PEMDAS Stands For

#P stands for Parenthesis
#E stands for Exponent
#M stands for Multiplication
#D stands for Division
#A stands for Addition
#S stands for Subtraction


print(2-3*5)
print(2**3*5)
print((2-3)*5)

In the first expression, preference will be given to multiply followed by subtraction. So, the calculation would be 2 – 15 = -13.

In the second expression, preference will be given to multiply followed by subtraction. So, the calculation would be (3 times 2) 8 * 5 = 40.

In the second expression, preference will be given to parenthesis followed by multiplication. So, the calculation would be -1 * 5 = -5.

Output

Posted By -	Karan Gupta

Posted On -	Friday, February 15, 2019

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