02111-1307, USA. */
#include <config.h>
-#include <math.h>
#include "stats.h"
+#include <math.h>
/* Returns the fourth power of its argument. */
double
-hypercube (double x)
+pow4 (double x)
{
x *= x;
return x * x;
(((n + 1) * (n * d[3]
- 4.0 * d[0] * d[2]
+ 6.0 * sqr (d[0]) * d[1] / n
- - 3.0 * hypercube (d[0]) / sqr (n)))
+ - 3.0 * pow4 (d[0]) / sqr (n)))
/ ((n - 1.0) * (n - 2.0) * (n - 3.0) * sqr (variance))
- (3.0 * sqr (n - 1.0))
/ ((n - 2.0) * (n - 3.)));