chapter 4 || Mathematical expressions || Familiar operators

Chapter 4

Mathematical expressions: Familiar operators

 

You've just utilized Python to make some basic figuring, similar to 2 + 2.

The programming term for a count is math articulation. Natural administrators in numerical articulations are + (add), - (deduct), * (duplicate), and/(partition). As you've seen, rather than doling out a number to a variable…

Popular number = 4

 

…you can allocate the consequence of a mathematical articulation to the variable…

Popular number = 2 + 2

 

Python makes the estimation 2 + 2 and relegates the outcome to the variable. In the explanation above, the popular number is doled out the amount of 2 + 2—the number 4.

You can compose:

Print (2 + 2)

 

This Presentations 4 on the screen.

Here's an explanation that deducts 24 from 12, allocating the outcome, - 12, to the variable.

misfortune = 12 - 24

 

This one appoints the result multiple times 12—outcome 36—to the variable.

handfuls = 3 * 12

This one appoints 12 separated by 4—the outcome is 3—to the variable.

Popular number = 12/4

In the next one, the glide .075 is assigned to the mutable num. Then the digit 200 is added to the adaptable, and the sum, 200.075, is assigned to a second adaptable, total. As usual, you can mix variables and numbers.

1 num = .075

2 totals = num + 200

You can also do a control using an appearance covering nothing but variables.

1        num = 10

2        another num = 1.5

3        sums of numbers = num + another num

In the statement above, the variable sum of numbers winds up with a value of 11.5.