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Posted to commits@commons.apache.org by lu...@apache.org on 2012/08/18 20:08:30 UTC
svn commit: r1374627 -
/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java
Author: luc
Date: Sat Aug 18 18:08:29 2012
New Revision: 1374627
URL: http://svn.apache.org/viewvc?rev=1374627&view=rev
Log:
Typo in comment.
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java
Modified: commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java
URL: http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java?rev=1374627&r1=1374626&r2=1374627&view=diff
==============================================================================
--- commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java (original)
+++ commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/differentiation/DSCompiler.java Sat Aug 18 18:08:29 2012
@@ -1152,7 +1152,7 @@ public class DSCompiler {
// the nth order derivative of tan has the form:
// dn(tan(x)/dxn = P_n(tan(x))
// where P_n(t) is a degree n+1 polynomial with same parity as n+1
- // P_0(t) = t, P_1(t) = 1 + t^2, P_2(x) = 2 t (1 + t^2) ...
+ // P_0(t) = t, P_1(t) = 1 + t^2, P_2(t) = 2 t (1 + t^2) ...
// the general recurrence relation for P_n is:
// P_n(x) = (1+t^2) P_(n-1)'(t)
// as per polynomial parity, we can store coefficients of both P_(n-1) and P_n in the same array
@@ -1478,7 +1478,7 @@ public class DSCompiler {
// the nth order derivative of tanh has the form:
// dn(tanh(x)/dxn = P_n(tanh(x))
// where P_n(t) is a degree n+1 polynomial with same parity as n+1
- // P_0(t) = t, P_1(t) = 1 - t^2, P_2(x) = -2 t (1 - t^2) ...
+ // P_0(t) = t, P_1(t) = 1 - t^2, P_2(t) = -2 t (1 - t^2) ...
// the general recurrence relation for P_n is:
// P_n(x) = (1-t^2) P_(n-1)'(t)
// as per polynomial parity, we can store coefficients of both P_(n-1) and P_n in the same array