Math Operators

math operators

Math operators

Video Transcript

In this section, we will cover how to do math in Python. In Python, there are several built-in math operators that we can use to perform calculations. These include:
  • Addition +
  • Subtraction -
  • Multiplication *
  • Division /
  • Exponent **
  • Parentheses ( )
  • Assignment =
Python also follows the rules of PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction are performed in that order, from left to right.
It's important to note that the single equal sign does not check if the two sides are equal, but rather assigns the value of the expression on the right side to the variable on the left.
Finally, let's take a look at an example of how to use these operators in a program to calculate the area of a trapezoid:
# area of a trapezoid
base1 = 10
base2 = 8
height = 20
area = height * (base1 + base2) / 2
print(area)
# 180
In this program, the values of base1 and base2 are first added together to get 18 since they are in the parentheses. That value of 18 is then multiplied by height and divided by 2, in order from left to right. The resulting value of 180 is then assigned to the variable area and printed to the console.
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