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I NEED HELP WITH THIS PROBLEM!!!! ANYONE!!!!

/*3. Write the function: double max_norm(double *v, int n) to compute
the maximum norm of vector v[] with n elements. The max norm of a vector is
computed by taking the maximum absolute value of its elements.
In prob3() compute x1[]=a[][]*x0[], call max_norm() to compute the max_norm
x1[]. In order to normalize (or convert it to a unit vector), divide each
element of x1[] by the norm. Print the normalized x1[] using %12.4e. Then
copy x1[] as x0[] (to perform updating) and repeat the process nine more times
. */
double a[5][5]={ 1.0, 0.2, 0.6, 0.3,-0.2,
0.2, 3.0,-0.1, 0.2, 0.7,
0.6,-0.1, 2.0, 0.7, 0.1,
0.3, 0.2, 0.7, 5.5, 0.2,
-0.2, 0.7, 0.1, 0.2, 4.5 };
double x1[5], x0[5]={0.1, -0.5, 0.1, 1.0, 0.9};

Edited by happygeek: fixed formatting

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Last Post by dummy programer
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Exactly, where are you having problems with?
Be more specific and post relevant portion of code you have tried already and it is not working.

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I'm completely lost....I don't understand how to write the first function then call on it???

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...then ask your teacher to divide your homework grade by 2 and send the second half to the author of the best answer...

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/*3. Write the function: double max_norm(double *v, int n) to compute
the maximum norm of vector v[] with n elements. The max norm of a vector is
computed by taking the maximum absolute value of its elements.
In prob3() compute x1[]=a[][]*x0[], call max_norm() to compute the max_norm
x1[]. In order to normalize (or convert it to a unit vector), divide each
element of x1[] by the norm. Print the normalized x1[] using %12.4e. Then
copy x1[] as x0[] (to perform updating) and repeat the process nine more times. */

double a[5][5]={ 1.0, 0.2, 0.6, 0.3,-0.2,
                         0.2, 3.0,-0.1, 0.2, 0.7,
                         0.6,-0.1, 2.0, 0.7, 0.1,
                         0.3, 0.2, 0.7, 5.5, 0.2,
                        -0.2, 0.7, 0.1, 0.2, 4.5 };
        double x1[5], x0[5]={0.1, -0.5, 0.1, 1.0, 0.9};
// ***Enter your statements
        int i, k;
        double dot;
        for(i=0; i<5; i++){
                for(k=0, dot=0.0; k<5; k++){
                        dot +=a[i][k] * x0[k];
                        x1[i]=dot;
                }
        }

        return;
}
double max_norm(double *v, int n)
{
// ***Enter your statements


return;
}
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