C/Visual C - Operaciones con matrices double

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int matriz[10][10]; /* Matriz a la que se le intercambian filas */

    int fil, /* Numero de filas de la matriz */

        col, /* Numero de columnas de la matriz */

        fi, /* Fila a ser multiplicada*/

        mul; /* Factor de multiplicacion */

    int h,k,i,j,l,m;

    printf("Ingrese el numero de filas");

    scanf(" %d",&fil);

    printf("Ingrese el numero de columnas");

    scanf(" %d",&col);

    printf("Ingrese el numero de fila que va a multiplicar");

    scanf(" %d",&fi);

    printf("Ingrese el factor de multiplicacion");

    scanf(" %d",&mul);

    for (h=0; h<fil; h++)

    {

        for (k=0; k<col; k++)

        {

            scanf(" %d",&matriz [h][k]);

        }

        printf("\n");

    }

    printf("Su matriz es:");

    printf("\n");

    for (i=0; i<fil; i++)

    {

        for (j=0; j<col; j++)

        {

            printf(" %d",matriz [i][j]);

        }

        printf("\n");

    }

    Row_Elementary_Op_2( matriz, fil, col, fi, mul );

    printf("El resultado de la fila %d Por el factor %d es",fi,mul);

    printf("\n");

    printf("\n");

    for (l=0; l<fil; l++)

    {

        for (m=0; m<col; m++)

        {

            printf(" %d",matriz [l][m]);

        }

        printf("\n");

    }

}

void

Row_Elementary_Op_2( mtx, mtx_rows, mtx_cols, row, alfa )

int mtx[10][10]; /* Matriz a la que se le aplica la operacion */

int mtx_rows, /* Numero de filas de la matriz */

    mtx_cols, /* Numero de columnas de la matriz */

    row, /* Fila a ser multiplicada */

    alfa; /* Factor de multiplicacion */

{

    int aux;

    int i=0;

    for (i; i<=mtx_cols; i++ )

    {

        mtx[row][i]=mtx[row][i]*alfa;

    }

}

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#define AR_SIZE ( (10 * sizeof(int*)) + (10 * 10 * sizeof(int) ) )

int main(void){

	char *block;

	float **ptr;

	float *pc;

	float *ip;

	float result;

	int i, j ;

	block = malloc( AR_SIZE);

	pc = (float*)block;

	ptr = (float**)pc;

	pc+= 10;

	for ( i = 0 ; i < 10; i++,ptr++){

		 pc+=10;

		*ptr = (float*)pc;

	}

	ptr = (float**) block;

	ip =*ptr;

	for ( i = 0 ; i < 10; i++,ptr++){

		ip =*ptr;

		for ( j = 0 ; j < 10; j++, ip++)

			 *ip = j+i;

	}

	ptr = (float**) block;

	ip =*ptr;

	ptr[0][0] = 66.66;

	ptr[1][1] = 44.44;

	ptr[2][2] = 77.77;

	ptr[9][0] = 88.88;

	for ( i = 0 ; i < 10; i++,ptr++){

		ip =*ptr;

		printf("\n");

		for ( j = 0 ; j < 10; j++, ip++)

			 printf(" %6.3f",*ip);

	}

	printf("\n--------Suma----------\n");

	ptr = (float**) block;

	ip =*ptr;

	result = 0;

	for ( i = 0 ; i < 10; i++,ptr++){

		ip =*ptr;

		for ( j = 0 ; j < 10; j++, ip++) {

			result += *ip;

		}

		printf(" %6.3f\n",result);

		result = 0;

	}

	free(block);

	return 0;

}

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#define AR_SIZE ( (10 * sizeof(int*)) + (10 * 10 * sizeof(int) ) )

int main(void){

	char *block;

	float **ptr;

	float *pc;

	float result;

	int i, j ;

	block = malloc( AR_SIZE);

	pc = (float*)block;

	ptr = (float**)pc;

	pc+= 10;

	for ( i = 0 ; i < 10; i++,ptr++){

		 pc+=10;

		*ptr = (float*)pc;

	}

	ptr = (float**) block;

	for ( i = 0 ; i < 10; i++){

		printf("\n");

		for ( j = 0 ; j < 10; j++){

			 ptr[i][j] = j+i;

		}

	}

	ptr[0][0] = 66.66;

	ptr[1][1] = 44.44;

	ptr[2][2] = 77.77;

	ptr[9][0] = 88.88;

	for ( i = 0 ; i < 10; i++){

		printf("\n");

		for ( j = 0 ; j < 10; j++){

			 printf(" %6.3f",ptr[i][j]);

		}

	}

	printf("\n--------Suma----------\n");

	for (result = 0, i = 0 ; i < 10; i++){

		printf("\n");

		for ( j = 0 ; j < 10; j++){

			 result += ptr[i][j];

		}

		 printf(" %6.3f",result);

		result = 0;

	}

	free(block);

	return 0;

}