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Original file line number Diff line number Diff line change
Expand Up @@ -19,20 +19,19 @@
#include "stdlib/stats/base/dists/uniform/stdev.h"
#include "stdlib/math/base/assert/is_nan.h"

static const double SQRT_ONE_TWELFTH = 0.28867513459481287; // stdlib_base_sqrt( 1.0/12.0 )

/**
* Returns the standard deviation of a uniform distribution.
*
* @param n minimum support
* @param p maximum support
* @param a minimum support
* @param b maximum support
* @return standard deviation
*
* @example
* double v = stdev( 4.0, 12.0 );
* // returns ~2.309
*/

static const double SQRT_ONE_TWELFTH = 0.28867513459481287; // stdlib_base_sqrt( 1.0/12.0 )

double stdlib_base_dists_uniform_stdev( const double a, const double b ) {
if (
stdlib_base_is_nan( a ) ||
Expand All @@ -41,5 +40,5 @@ double stdlib_base_dists_uniform_stdev( const double a, const double b ) {
) {
return 0.0 / 0.0; // NaN
}
return SQRT_ONE_TWELFTH * ( b-a );
return SQRT_ONE_TWELFTH * (b-a);
}
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