/* --------------------------------------------------------------------- 
**  Figure 10.9:  Walking on memory.
** --------------------------------------------------------------------- 
*/
#include "tools.h"

void main( void )
{   
    int k;              /* Loop counter. */
    float v[3];         /* A vector in 3-space. */
    float sum;          /* The sum of the squares of the components. */
    float magnitude;

    puts( "\n Subscript Demo: Walking on Memory" );
    printf( " Please enter one float vector component at each prompt.\n" );
    for (sum = 0.0, k = 0; k <= 3; ++k) {       /* Loop goes too far. */
        printf( "\tv[%i]: ", k ); 
        scanf( "%g", &v[k] );
        sum += v[k]*v[k];   
    }
    magnitude = sqrt( sum );

    printf( "    The magnitude of vector ( %g, %g, %g ) is %g \n", 
                v[0], v[1], v[2], magnitude ); 
    bye();
}