C-function - Revision history

Kku: link Lie group

2024-01-26T18:55:04Z

link Lie group

← Previous revision		Revision as of 18:55, 26 January 2024
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	In mathematics, '''c-function''' may refer to:		In mathematics, '''c-function''' may refer to:
	*[[Smooth function]]		*[[Smooth function]]
	*[[Harish-Chandra's c-function]] in the theory of Lie ~~groups~~		*[[Harish-Chandra's c-function]] in the theory of [[Lie group]]s
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	{{mathdab}}		{{mathdab}}

Isabelle Belato at 22:55, 19 August 2021

2021-08-19T22:55:04Z

← Previous revision		Revision as of 22:55, 19 August 2021
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
			{{mathdab}}

Dingolover6969: Remove blog spam dead link

2021-08-19T22:50:39Z

Remove blog spam dead link

← Previous revision		Revision as of 22:50, 19 August 2021
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and [https://studypointbihar.blogspot.com/2020/02/user-defined-functions.html?m=1 User defined function.] There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and [https://studypointbihar.blogspot.com/2020/02/argument-passing-techniques.html?m=1 argument passing techniques] in C
	{{Mathdab}}

2409:4055:317:F953:10AC:2FFF:FED2:A194: Argument passing techniques in C

2020-02-23T07:19:40Z

Argument passing techniques in C

← Previous revision		Revision as of 07:19, 23 February 2020
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and [https://studypointbihar.blogspot.com/2020/02/user-defined-functions.html?m=1 User defined function.] There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C		*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and [https://studypointbihar.blogspot.com/2020/02/user-defined-functions.html?m=1 User defined function.] There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and [https://studypointbihar.blogspot.com/2020/02/argument-passing-techniques.html?m=1 argument passing techniques] in C
	{{Mathdab}}		{{Mathdab}}

2409:4055:317:F953:10AC:2FFF:FED2:A194: User defined functions in C

2020-02-23T07:17:56Z

User defined functions in C

← Previous revision		Revision as of 07:17, 23 February 2020
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and User defined function. There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C		*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and [https://studypointbihar.blogspot.com/2020/02/user-defined-functions.html?m=1 User defined function.] There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C
	{{Mathdab}}		{{Mathdab}}

2409:4055:317:F953:10AC:2FFF:FED2:A194: Library functions in C

2020-02-23T07:16:13Z

Library functions in C

← Previous revision		Revision as of 07:16, 23 February 2020
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	*Functions are classified in to two types, library functions and User defined function. There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C		*Functions are classified in to two types, [https://studypointbihar.blogspot.com/2020/02/functions-in-c.html?m=1 library functions] and User defined function. There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C
	{{Mathdab}}		{{Mathdab}}

2409:4055:317:F953:10AC:2FFF:FED2:A194: Categories of functions in C

2020-02-23T07:14:36Z

Categories of functions in C

← Previous revision		Revision as of 07:14, 23 February 2020
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	*[[Harish-Chandra's c-function]] in the theory of Lie groups		*[[Harish-Chandra's c-function]] in the theory of Lie groups
	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
			*Functions are classified in to two types, library functions and User defined function. There are [https://studypointbihar.blogspot.com/2020/02/categories-of-functions.html?m=1 categories of functions] and argument passing techniques in C
	{{Mathdab}}		{{Mathdab}}

Bot1058: Task 6: remove disambiguation page from Category:Monitored short pages

2019-12-27T23:24:34Z

Task 6: remove disambiguation page from Category:Monitored short pages

← Previous revision		Revision as of 23:24, 27 December 2019
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	*[[List of C functions]] for the programming language C		*[[List of C functions]] for the programming language C
	{{Mathdab}}		{{Mathdab}}

	{{Short pages monitor}}<!-- This long comment was added to the page to prevent it from being listed on Special:Shortpages. It and the accompanying monitoring template were generated via Template:Long comment. Please do not remove the monitor template without removing the comment as well.-->

Pinethicket: Reverted edits by 114.143.95.203 (talk) to last version by Dcirovic

2016-03-20T13:36:33Z

Reverted edits by 114.143.95.203 (talk) to last version by Dcirovic

← Previous revision		Revision as of 13:36, 20 March 2016
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			In mathematics, '''c-function''' may refer to:
	A function is a module or block of program code which deals with a particular task. Making functions is a way of isolating one block of code from other independent blocks of code.
			*[[Smooth function]]
			*[[Harish-Chandra's c-function]] in the theory of Lie groups
			*[[List of C functions]] for the programming language C
			{{Mathdab}}

			{{Short pages monitor}}<!-- This long comment was added to the page to prevent it from being listed on Special:Shortpages. It and the accompanying monitoring template were generated via Template:Long comment. Please do not remove the monitor template without removing the comment as well.-->
	Functions serve two purposes.

	They allow a programmer to say: `this piece of code does a specific job which stands by itself and should not be mixed up with anyting else',

	Second they make a block of code reusable since a function can be reused in many different contexts without repeating parts of the program text.

	A function can take a number of parameters, do required processing and then return a value. There may be a function which does not return any value.

	You already have seen couple of built-in functions like printf(); Similar way you can define your own functions in C language.

	Consider the following chunk of code

	int total = 10;
	printf("Hello World");
	total = total + l;
	To turn it into a function you simply wrap the code in a pair of curly brackets to convert it into a single compound statement and write the name that you want to give it in front of the brackets:

	Demo()
	{
	int total = 10;
	printf("Hello World");
	total = total + l;
	}
	curved brackets after the function's name are required. You can pass one or more paramenters to a function as follows:

	Demo( int par1, int par2)
	{
	int total = 10;
	printf("Hello World");
	total = total + l;
	}
	By default function does not return anything. But you can make a function to return any value as follows:

	int Demo( int par1, int par2)
	{
	int total = 10;
	printf("Hello World");
	total = total + l;

	return total;
	}
	A return keyword is used to return a value and datatype of the returned value is specified before the name of function. In this case function returns total which is int type. If a function does not return a value then void keyword can be used as return value.

	Once you have defined your function you can use it within a program:

	main()
	{
	Demo();
	}
	Functions and Variables:
	Each function behaves the same way as C language standard function main(). So a function will have its own local variables defined. In the above example total variable is local to the function Demo.

	A global variable can be accessed in any function in similar way it is accessed in main() function.

	Declaration and Definition
	When a function is defined at any place in the program then it is called function definition. At the time of definition of a function actual logic is implemented with-in the function.

	A function declaration does not have any body and they just have their interfaces.

	A function declaration is usually declared at the top of a C source file, or in a separate header file.

	A function declaration is sometime called function prototype or function signature. For the above Demo() function which returns an integer, and takes two parameters a function declaration will be as follows:

	int Demo( int par1, int par2);
	Passing Parameters to a Function
	There are two ways to pass parameters to a function:

	Pass by Value: mechanism is used when you don't want to change the value of passed paramters. When parameters are passed by value then functions in C create copies of the passed in variables and do required processing on these copied variables.

	Pass by Reference mechanism is used when you want a function to do the changes in passed parameters and reflect those changes back to the calling function. In this case only addresses of the variables are passed to a function so that function can work directly over the addresses.

	Here are two programs to understand the difference: First example is for Pass by value:


	#include <stdio.h>

	/* function declaration goes here.*/
	void swap( int p1, int p2 );

	int main()
	{
	int a = 10;
	int b = 20;

	printf("Before: Value of a = %d and value of b = %d\n", a, b );
	swap( a, b );
	printf("After: Value of a = %d and value of b = %d\n", a, b );
	}

	void swap( int p1, int p2 )
	{
	int t;

	t = p2;
	p2 = p1;
	p1 = t;
	printf("Value of a (p1) = %d and value of b(p2) = %d\n", p1, p2 );
	}
	Here is the result produced by the above example. Here the values of a and b remain unchanged before calling swap function and after calling swap function.

	Before: Value of a = 10 and value of b = 20
	Value of a (p1) = 20 and value of b(p2) = 10
	After: Value of a = 10 and value of b = 20
	Following is the example which demonstrate the concept of pass by reference

	#include <stdio.h>

	/* function declaration goes here.*/
	void swap( int p1, int p2 );

	int main()
	{
	int a = 10;
	int b = 20;

	printf("Before: Value of a = %d and value of b = %d\n", a, b );
	swap( &a, &b );
	printf("After: Value of a = %d and value of b = %d\n", a, b );
	}

	void swap( int p1, int p2 )
	{
	int t;

	t = *p2;
	p2 = p1;
	*p1 = t;
	printf("Value of a (p1) = %d and value of b(p2) = %d\n", p1, p2 );
	}

	today date 20/3/2016

	name=sahil shete

114.143.95.203 at 13:36, 20 March 2016

2016-03-20T13:36:24Z

← Previous revision		Revision as of 13:36, 20 March 2016
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	printf("Value of a (p1) = %d and value of b(p2) = %d\n", p1, p2 );		printf("Value of a (p1) = %d and value of b(p2) = %d\n", p1, p2 );
	}		}

	today date 20/3/2016		today date 20/3/2016

	name=sahil shete		name=sahil shete