Python Range Function

 Python Range Function

Python Range Function

Defining Functions in Python

  • We begin a function definition with the def keyword,followed by the name we might wish to offer our function. 
  • We’ve the parameters after the name,also called arguments,for the function enclosed in parentheses. 
  • A function may have no parameters,or it can have multiple parameters. 
  • Parameters permit us to call a function and pass it data, with the data being available inside the function as variables with the same name because the parameters. 
  • At the end, we put a colon at the highest of the road . 
  • The function body starts after the colon, .It’s important to note that in Python the function body is delimited by indentation. 
  • This advised that every one code indented to the right following a function definition may be a component of the function body. 
  • The initial line that’s not indented is that the boundary of the function body.It’s up to you ways many spaces you use when indenting—-just inform be consistent. 
  • Hence if we decide on to indent with four spaces, you’d wish to use four spaces everywhere in our code.
  • A variety () function are often employed by passing it one parameter, and it generated a sequence of numbers from 0 to at least one but we specified.But the range() function can do far more than that. 
  • We would say in two parameters: the primary specifying our start line , the second specifying the top point. 
  • Remember that the sequence generated won’t contain the last element; it’ll stop one before the parameter specified.

Range Function

  • The range() function can take a 3rd parameter,too.This third parameter allows you to alter the dimensions of every step. Perhaps than creating a sequence of numbers incremented by 1. 
  • We’ll create a sequence of numbers that are incremented by 5. 
  • One parameter would generate a sequence , one-by-one, from zero to at least one but the parameter. 
  • Two parameters will generate a sequence, one-by-one, from the primary parameter to at least one but the second parameter. 
  • Three parameters would create a sequence starting with the primary parameter and stopping before the second parameter, but this point increasing each step by the third parameter.

Returning Values Using Functions

  • We for sometimes do not need a function to easily run and finish.We might want a function to control data we passed it then return the result to us. 
  • This is mostly where the concept of return values comes in handy.We use the return keyword during a function, which tells the function to pass data back. 
  • Once we call the function, we will store the returned value during a variable. 
  • Return values permit our functions to be more flexible and powerful, in order that they are often reused and called multiple times. 
  • Function may even return multiple values.Just do not forget to store all returned values in variables. 
  • We’ll even have a function return nothing, during which case the function simply exits.

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