Python Program 09 || For loop in python

Publié le: 25 avril 2021
sur la chaîne: CS World

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#scitech #scitech_csworld #python #for_loop

Python Program 09 || For loop in python ||
example : Write a program to print the multiplication table of n, where n is entered by the user.
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for loop in python
The for loop provides a mechanism to repeat a task until a particular condition is True. The for loop is usually known as a determinate or definite loop because the programmer knows exactly how many times the loop will repeat.
The number of times the loop has to be executed can be determined mathematically checking the logic of the loop.
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Programming Tip : There is a difference in for loop syntax. Python syntax uses the range function which makes the loop simpler, more expressive, and less prone to error(s).
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Syntax of for loop
for loop_control_var in sequence :
statement block
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Note : The for loop is widely used to execute a single or a group of statements a limited number of times.
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The range() function
The range() is a built-in function in Python that is used to iterate over a sequence of numbers. The syntax of range is

range(beg, end, [step])

The range() produced a sequence of number starting with beg(inclusive) and ending with one less than the number end. The step argument is optional . By default, every number in the range is incremented by 1 but we can specify a different increment using step.
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Note : Step can be either positive value or negative but it cannot be equal to zero.
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