Mathematica 7 compares to other languages

[John W Kennedy]

Xah Lee wrote:
> In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
> you'll have 50 or hundreds lines.

C:

#include <stdlib.h>
#include <math.h>

void normal(int dim, float* x, float* a) {
    float sum = 0.0f;
    int i;
    float divisor;
    for (i = 0; i < dim; ++i) sum += x[i] * x[i];
    divisor = sqrt(sum);
    for (i = 0; i < dim; ++i) a[i] = x[i]/divisor;
}

Java:

static float[] normal(final float[] x) {
    float sum = 0.0f;
    for (int i = 0; i < x.length; ++i) sum += x[i] * x[i];
    final float divisor = (float) Math.sqrt(sum);
    float[] a = new float[x.length];
    for (int i = 0; i < x.length; ++i) a[i] = x[i]/divisor;
    return a;
}


-- 
John W. Kennedy
  "Never try to take over the international economy based on a radical 
feminist agenda if you're not sure your leader isn't a transvestite."
   -- David Misch:  "She-Spies", "While You Were Out"