[Tutor] parameters vs arguments

[BINTO]

I understand now…

 

Thanks

Binto

 

From: ALAN GAULD [mailto:alan.gauld at btinternet.com] 
Sent: Friday, November 06, 2009 7:41 AM
To: BINTO
Subject: Re: [Tutor] parameters vs arguments

 

 

> Parameter is what used to give/call value in function.
> Argument is what used to give/call value in command line interface.
>
> Am I correct??...

No.

parameters are what you use when you create the function definition.

For example

 

def f(x):

    return 2*x

 

x is the parameter.

 

Now when I call f() I must pass in a value (or variable with a value). 

The thing I pass in when I call f() is the argument.

 

f(2)

 

2 becomes the argument for this particular call to f.

The parameter x of f takes on the value 2 during this particular invocation.

 

z = 7

f(z)

 

z is now the argument of f for this invocation.

The parameter x takes on the value 7, which is the value of the argument, z

 

x is always the parameter of f() but the argument can change 

each time you call f()

 

HTH,

 

Alan G.

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