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Python Range Function

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Homework

Python range function

:EN

** The basics

• Range command works like this:
  1. range(upToNumber) - it produce a sequence of numbers from 0 up to BUT NOT equal to the upToNumber. For example, range(5) will produce: 0,1,2,3,4, therefore, there are 5 numbers, for each number the loop going through, it prints out “Welcome to the range”.
  2. range(startNumber, upToNumber) - it produces a sequence of numbers from startNumber to BUT NOT equal to the upToNumber. For example, range(3,8) will produce: 3,4,5,6,7
  3. range(startNumber, upToNumber, increaseBy)- it produces a sequence of numbers from startNumber to BUT NOT equal to the upToNumber, each time the next number increase by the number specified by increaseBy. For example, range(2,10,2) will produce: 2,4,6,8.
  4. the startNumber, upToNumber, increaseBy must be integers
• What can it be used for:

x + Most often you will use the range function to control how many times a loop should repeat

• Another common use is to iterate through a list one item at a time or even skip by a fixed number by giving the increaseBy parameter a number.

Try it out

1. Example 1:

1. What numbers are produced in this loop:

1. What numbers are produced in this loop:

1. write a for loop that will print out all positive whole numbers (integers) up to 100 that are divisible by 5.