Archive:Matrix multiplication using C - Revision history

wikademia>Wikademia: moved Matrix multiplication using C to Archive:Matrix multiplication using C

2009-06-13T06:24:37Z

moved Matrix multiplication using C to Archive:Matrix multiplication using C

← Older revision	Revision as of 06:24, 13 June 2009
(No difference)

wikademia>Wikademia: moved Matrix multiplication to Matrix multiplication using C

2009-06-11T05:33:42Z

moved Matrix multiplication to Matrix multiplication using C

← Older revision	Revision as of 05:33, 11 June 2009
(No difference)

wikademia>Wikademia: 9 revisions

2009-04-11T05:40:50Z

9 revisions

← Older revision	Revision as of 05:40, 11 April 2009
(No difference)

wikademia>Gbaor: cat. change

2008-06-10T11:50:57Z

cat. change

← Older revision		Revision as of 11:50, 10 June 2008
Line 99:		Line 99:

	[[Category:C source code examples]]		[[Category:C source code examples]]
	~~[[Category:C]]~~
	[[Category:Programming]]		[[Category:Programming]]

wikademia>Gergo: removed and associated functions for portability

2007-06-23T21:26:02Z

removed <conio.h> and associated functions for portability

← Older revision		Revision as of 21:26, 23 June 2007
Line 1:		Line 1:
	<source lang="c">/* Program to implement matrix multiplication. */		<source lang="c">/* Program to implement matrix multiplication. */
	/* Performed by Milan. */		/* Performed by Milan. */
			/* Edited by Gergo: resolved some portability issues */

	#include <stdio.h>		#include <stdio.h>
	#include <~~conio~~.h>		#include <stdlib.h>

	~~void~~ main()		int main(void)
	{		{
	int a[10][10], b[10][10], c[10][10];		int a[10][10], b[10][10], c[10][10];
	int i, j, m, n, x, y, k;		int i, j, m, n, x, y, k;
	~~clrscr()~~;

	/* Entering values for matrix a...*/		/* Entering values for matrix a...*/
	printf ("\n Enter the rows and columns of a: ");		printf ("\n Enter the rows and columns of a: ");
	scanf ("%d%d", &m, &n);		scanf ("%d%d", &m, &n);

	for (i = 0; i < m; i++)		for (i = 0; i < m; i++)
	{		{
	for (j = 0; j < n; j++)		for (j = 0; j < n; j++)
	{		{
	printf (" a[%d][%d] = ", (i+1), (j+1));		printf (" a[%d][%d] = ", (i+1), (j+1));
	scanf ("%d", &a[i][j]);		scanf ("%d", &a[i][j]);
	}		}
	printf ("\n");		printf ("\n");
	}		}

	/* Entering values for matrix b... */		/* Entering values for matrix b... */
	printf ("\n Enter the rows and columns of b: ");		printf ("\n Enter the rows and columns of b: ");
	scanf ("%d%d", &x, &y);		scanf ("%d%d", &x, &y);

	for (i = 0; i < x; i++)		for (i = 0; i < x; i++)
	{		{
	for (j = 0; j < y; j++)		for (j = 0; j < y; j++)
	{		{
	printf (" b[%d][%d] = ", (i+1), (j+1));		printf (" b[%d][%d] = ", (i+1), (j+1));
	scanf ("%d", &b[i][j]);		scanf ("%d", &b[i][j]);
	}		}
	printf ("\n");		printf ("\n");
	}		}

	/* Calculations */		/* Calculations */
	if ( n != x)		if ( n != x)
	{		{
	printf ("\n Error!! Rows of a don't match with columns of b.");		printf ("\n Error!! Rows of a don't match with columns of b.");
	printf ("\n Multiplication Impossible.");		printf ("\n Multiplication Impossible.");
	~~getch();~~		exit(EXIT_FAILURE);
	exit(0);		}
	}		else
	else		{
	{		for (i = 0; i < m; i++)
	for (i = 0; i < m; i++)		{
	{		for (j = 0; j < y; j++)
	for (j = 0; j < y; j++)		{
	{		c[i][j] = 0;
	c[i][j] = 0;		for (k = 0; k < n; k++)
	for (k = 0; k < n; k++)		{
	{		c[i][j]+=a[i][k]*b[k][j];
	c[i][j]+=a[i][k]*b[k][j];		}
	}		}
	}		}
	}		}
	}

	/* Output */		/* Output */
	printf ("\n The resultant c is:\n");		printf ("\n The resultant c is:\n");
	for (i = 0; i < m; i++)		for (i = 0; i < m; i++)
	{		{
	for (j = 0; j < y; j++)		for (j = 0; j < y; j++)
	{		{
	printf (" c[%d][%d] = %d", (i+1), (j+1), c[i][j]);		printf (" c[%d][%d] = %d", (i+1), (j+1), c[i][j]);
	}		}
	printf ("\n");		printf ("\n");
	}		}

	~~getch()~~;		return 0;
	}		}
	/* Output:		/* Output:

wikademia>MichaelFrey at 06:46, 17 May 2007

2007-05-17T06:46:20Z

← Older revision		Revision as of 06:46, 17 May 2007
Line 1:		Line 1:
	<~~pre~~>/* Program to implement matrix multiplication. */		<source lang="c">/* Program to implement matrix multiplication. */
	/* Performed by Milan. */		/* Performed by Milan. */

Line 97:		Line 97:
	c[2][1] = 14 c[2][2] = 11		c[2][1] = 14 c[2][2] = 11
	*/		*/
	</~~pre~~>		</source>

	[[Category:C source code examples]]		[[Category:C source code examples]]
	[[Category:C]]		[[Category:C]]
	[[Category:Programming]]		[[Category:Programming]]

wikademia>Remi0o: added cats

2007-04-19T18:27:08Z

added cats

← Older revision		Revision as of 18:27, 19 April 2007
Line 100:		Line 100:

	[[Category:C source code examples]]		[[Category:C source code examples]]
			[[Category:C]]
			[[Category:Programming]]

wikademia>Remi0o: Matrix Multiplication moved to Matrix multiplication

2007-04-19T18:26:29Z

Matrix Multiplication moved to Matrix multiplication

← Older revision	Revision as of 18:26, 19 April 2007
(No difference)

wikademia>Sebmol: Reverted edits by Stinky sock (Talk) to last version by JWSchmidt using rollback

2007-04-07T18:14:49Z

Reverted edits by Stinky sock (Talk) to last version by JWSchmidt using rollback

← Older revision	Revision as of 18:14, 7 April 2007
Line 1:	Line 1:
		<pre>/* Program to implement matrix multiplication. */
		/* Performed by Milan. */

		#include <stdio.h>
		#include <conio.h>

		void main()
		{
		int a[10][10], b[10][10], c[10][10];
		int i, j, m, n, x, y, k;
		clrscr();

		/* Entering values for matrix a...*/
		printf ("\n Enter the rows and columns of a: ");
		scanf ("%d%d", &m, &n);

		for (i = 0; i < m; i++)
		{
		for (j = 0; j < n; j++)
		{
		printf (" a[%d][%d] = ", (i+1), (j+1));
		scanf ("%d", &a[i][j]);
		}
		printf ("\n");
		}

		/* Entering values for matrix b... */
		printf ("\n Enter the rows and columns of b: ");
		scanf ("%d%d", &x, &y);

		for (i = 0; i < x; i++)
		{
		for (j = 0; j < y; j++)
		{
		printf (" b[%d][%d] = ", (i+1), (j+1));
		scanf ("%d", &b[i][j]);
		}
		printf ("\n");
		}

		/* Calculations */
		if ( n != x)
		{
		printf ("\n Error!! Rows of a don't match with columns of b.");
		printf ("\n Multiplication Impossible.");
		getch();
		exit(0);
		}
		else
		{
		for (i = 0; i < m; i++)
		{
		for (j = 0; j < y; j++)
		{
		c[i][j] = 0;
		for (k = 0; k < n; k++)
		{
		c[i][j]+=a[i][k]*b[k][j];
		}
		}
		}
		}

		/* Output */
		printf ("\n The resultant c is:\n");
		for (i = 0; i < m; i++)
		{
		for (j = 0; j < y; j++)
		{
		printf (" c[%d][%d] = %d", (i+1), (j+1), c[i][j]);
		}
		printf ("\n");
		}

		getch();
		}
		/* Output:

		Enter the rows and columns of a: 2 2
		a[1][1] = 1
		a[1][2] = 2

		a[2][1] = 3
		a[2][2] = 4


		Enter the rows and columns of b: 2 2
		b[1][1] = 2
		b[1][2] = 1

		b[2][1] = 2
		b[2][2] = 2


		The resultant c is:
		c[1][1] = 6 c[1][2] = 5
		c[2][1] = 14 c[2][2] = 11
		*/
		</pre>

		[[Category:C source code examples]]

wikademia>Stinky sock: Removing all content from page

2007-04-07T17:33:33Z

Removing all content from page

← Older revision		Revision as of 17:33, 7 April 2007
Line 1:		Line 1:
	~~<pre>/* Program to implement matrix multiplication. */~~
	~~/* Performed by Milan. */~~

	~~#include <stdio.h>~~
	~~#include <conio.h>~~

	~~void main()~~
	{
	~~int a[10][10], b[10][10], c[10][10];~~
	~~int i, j, m, n, x, y, k;~~
	~~clrscr();~~

	~~/* Entering values for matrix a...*/~~
	~~printf ("\n Enter the rows and columns of a: ");~~
	~~scanf ("%d%d", &m, &n);~~

	~~for (i = 0; i < m; i++)~~
	{
	~~for (j = 0; j < n; j++)~~
	{
	~~printf (" a[%d][%d] = ", (i+1), (j+1));~~
	~~scanf ("%d", &a[i][j]);~~
	}
	~~printf ("\n");~~
	}

	~~/* Entering values for matrix b... */~~
	~~printf ("\n Enter the rows and columns of b: ");~~
	~~scanf ("%d%d", &x, &y);~~

	~~for (i = 0; i < x; i++)~~
	{
	~~for (j = 0; j < y; j++)~~
	{
	~~printf (" b[%d][%d] = ", (i+1), (j+1));~~
	~~scanf ("%d", &b[i][j]);~~
	}
	~~printf ("\n");~~
	}

	~~/* Calculations */~~
	~~if ( n != x)~~
	{
	~~printf ("\n Error!! Rows of a don't match with columns of b.");~~
	~~printf ("\n Multiplication Impossible.");~~
	~~getch();~~
	~~exit(0);~~
	}
	~~else~~
	{
	~~for (i = 0; i < m; i++)~~
	{
	~~for (j = 0; j < y; j++)~~
	{
	~~c[i][j] = 0;~~
	~~for (k = 0; k < n; k++)~~
	{
	~~c[i][j]+=a[i][k]*b[k][j];~~
	}
	}
	}
	}

	~~/* Output */~~
	~~printf ("\n The resultant c is:\n");~~
	~~for (i = 0; i < m; i++)~~
	{
	~~for (j = 0; j < y; j++)~~
	{
	~~printf (" c[%d][%d] = %d", (i+1), (j+1), c[i][j]);~~
	}
	~~printf ("\n");~~
	}

	~~getch();~~
	}
	~~/* Output:~~

	~~Enter the rows and columns of a: 2 2~~
	~~a[1][1] = 1~~
	~~a[1][2] = 2~~

	~~a[2][1] = 3~~
	~~a[2][2] = 4~~


	~~Enter the rows and columns of b: 2 2~~
	~~b[1][1] = 2~~
	~~b[1][2] = 1~~

	~~b[2][1] = 2~~
	~~b[2][2] = 2~~


	~~The resultant c is:~~
	~~c[1][1] = 6 c[1][2] = 5~~
	~~c[2][1] = 14 c[2][2] = 11~~
	*/
	~~</pre>~~

	~~[[Category:C source code examples]]~~