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Posted to commits@commons.apache.org by se...@apache.org on 2011/01/20 02:27:35 UTC
svn commit: r1061095 -
/commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java
Author: sebb
Date: Thu Jan 20 01:27:35 2011
New Revision: 1061095
URL: http://svn.apache.org/viewvc?rev=1061095&view=rev
Log:
Javadoc clarification for signum
Modified:
commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java
Modified: commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java
URL: http://svn.apache.org/viewvc/commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java?rev=1061095&r1=1061094&r2=1061095&view=diff
==============================================================================
--- commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java (original)
+++ commons/proper/math/branches/MATH_2_X/src/main/java/org/apache/commons/math/util/FastMath.java Thu Jan 20 01:27:35 2011
@@ -576,19 +576,19 @@ public class FastMath {
/** Compute the signum of a number.
* The signum is -1 for negative numbers, +1 for positive numbers and 0 otherwise
* @param a number on which evaluation is done
- * @return -1, 0, +1 or NaN depending on sign of a
+ * @return -1.0, -0.0, +0.0, +1.0 or NaN depending on sign of a
*/
public static double signum(final double a) {
- return (a < 0.0) ? -1.0 : ((a > 0.0) ? 1.0 : a);
+ return (a < 0.0) ? -1.0 : ((a > 0.0) ? 1.0 : a); // return +0.0/-0.0/NaN depending on a
}
/** Compute the signum of a number.
* The signum is -1 for negative numbers, +1 for positive numbers and 0 otherwise
* @param a number on which evaluation is done
- * @return -1, 0, +1 or NaN depending on sign of a
+ * @return -1.0, -0.0, +0.0, +1.0 or NaN depending on sign of a
*/
public static float signum(final float a) {
- return (a < 0.0f) ? -1.0f : ((a > 0.0f) ? 1.0f : a);
+ return (a < 0.0f) ? -1.0f : ((a > 0.0f) ? 1.0f : a); // return +0.0/-0.0/NaN depending on a
}
/** Compute next number towards positive infinity.