mdiggory 2003/06/20 19:54:56
Modified: math/src/java/org/apache/commons/math/stat
UnivariateImpl.java
Log:
Removed last of the Math.pow's
Revision Changes Path
1.13 +4 -4
jakarta-commons-sandbox/math/src/java/org/apache/commons/math/stat/UnivariateImpl.java
Index: UnivariateImpl.java
===================================================================
RCS file:
/home/cvs/jakarta-commons-sandbox/math/src/java/org/apache/commons/math/stat/UnivariateImpl.java,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- UnivariateImpl.java 21 Jun 2003 02:08:23 -0000 1.12
+++ UnivariateImpl.java 21 Jun 2003 02:54:55 -0000 1.13
@@ -306,7 +306,7 @@
/* if n <= 1, initialize the sumLog, min, max, mean, variance and
pre-variance */
sumLog = 0.0;
sum = min = max = mean = value;
- sumsq = Math.pow(value, 2);
+ sumsq = value * value;
variance = m2 = 0.0;
skewness = kurtosis = 0.0;
m2 = m3 = m4 = 0.0;
@@ -314,13 +314,13 @@
/* otherwise calc these values */
sumLog += Math.log(value);
sum += value;
- sumsq += Math.pow(value, 2);
+ sumsq += value * value;
min = Math.min(min, value);
max = Math.max(max, value);
double dev = value - mean;
double v = dev / ((double) n);
- double v2 = Math.pow(v, 2);
+ double v2 = v * v;
double n0 = (double) n;
double n1 = (double) (n - 1);
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