Author: sebb
Date: Mon Jan 24 13:20:28 2011
New Revision: 1062765
URL: http://svn.apache.org/viewvc?rev=1062765&view=rev
Log:
MATH-477 FastMath Javadoc should show which methods actually use java.lang.Math
internally
Also fixed round(int) to use local FastMath method
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=1062765&r1=1062764&r2=1062765&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
Mon Jan 24 13:20:28 2011
@@ -269,6 +269,7 @@ public class FastMath {
}
/** Compute the square root of a number.
+ * <p><b>Note:</b> this implementation currently delegates to {@link
Math#sqrt}
* @param a number on which evaluation is done
* @return square root of a
*/
@@ -665,6 +666,7 @@ public class FastMath {
}
/** Returns a pseudo-random number between 0.0 and 1.0.
+ * <p><b>Note:</b> this implementation currently delegates to {@link
Math#random}
* @return a random number between 0.0 and 1.0
*/
public static double random() {
@@ -3758,7 +3760,7 @@ public class FastMath {
* @return closest int to x
*/
public static int round(final float x) {
- return Math.round(x);
+ return (int) floor(x + 0.5f);
}
/** Compute the minimum of two values
@@ -3961,6 +3963,7 @@ public class FastMath {
* <li>If the dividend is finite and the divisor is an infinity, the
result equals the dividend.</li>
* <li>If the dividend is a zero and the divisor is finite, the result
equals the dividend.</li>
* </ul>
+ * <p><b>Note:</b> this implementation currently delegates to {@link
StrictMath#IEEEremainder}
* @param dividend the number to be divided
* @param divisor the number by which to divide
* @return the remainder, rounded
