Analogous to "normalizeAngle" in "MathUtils"
--------------------------------------------
Key: MATH-561
URL: https://issues.apache.org/jira/browse/MATH-561
Project: Commons Math
Issue Type: Wish
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Fix For: 3.0
I'd like to create a "reduce" method in "MathUtils", similar to
"normalizeAngle" but more general:
{code}
/**
* Reduce to the primary interval {@code [offset offset+period)}.
*
* @param a Value to reduce.
* @param period Period.
* @param offset Offset.
*/
public static double reduce(double a,
double period,
double offset) {
return a - period * FastMath.floor((a - offset) / period);
}
{code}
Thus the "period" parameter the is not fixed to 2π, as is the case in
"normalizeAngle".
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