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fixed formula in fast cosine transformer javadoc comments 

JIRA: MATH-205

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@656814 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Luc Maisonobe 2008-05-15 19:54:52 +00:00
parent 9022176c85
commit 033ac8e016
2 changed files with 11 additions and 8 deletions
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16
src/java/org/apache/commons/math/transform/FastCosineTransformer.java
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@ -53,7 +53,7 @@ public class FastCosineTransformer implements Serializable {
* Transform the given real data set.
* <p>
* The formula is $ F_n = (1/2) [f_0 + (-1)^n f_N] +
* \Sigma_{k=0}^{N-1} f_k \cos(\pi nk/N) $
* \Sigma_{k=1}^{N-1} f_k \cos(\pi nk/N) $
* </p>
*
* @param f the real data array to be transformed
@ -71,7 +71,7 @@ public class FastCosineTransformer implements Serializable {
* Transform the given real function, sampled on the given interval.
* <p>
* The formula is $ F_n = (1/2) [f_0 + (-1)^n f_N] +
* \Sigma_{k=0}^{N-1} f_k \cos(\pi nk/N) $
* \Sigma_{k=1}^{N-1} f_k \cos(\pi nk/N) $
* </p>
*
* @param f the function to be sampled and transformed
@ -94,7 +94,7 @@ public class FastCosineTransformer implements Serializable {
* Transform the given real data set.
* <p>
* The formula is $ F_n = \sqrt{1/2N} [f_0 + (-1)^n f_N] +
* \sqrt{2/N} \Sigma_{k=0}^{N-1} f_k \cos(\pi nk/N) $
* \sqrt{2/N} \Sigma_{k=1}^{N-1} f_k \cos(\pi nk/N) $
* </p>
*
* @param f the real data array to be transformed
@ -113,7 +113,7 @@ public class FastCosineTransformer implements Serializable {
* Transform the given real function, sampled on the given interval.
* <p>
* The formula is $ F_n = \sqrt{1/2N} [f_0 + (-1)^n f_N] +
* \sqrt{2/N} \Sigma_{k=0}^{N-1} f_k \cos(\pi nk/N) $
* \sqrt{2/N} \Sigma_{k=1}^{N-1} f_k \cos(\pi nk/N) $
*
* </p>
*
@ -138,7 +138,7 @@ public class FastCosineTransformer implements Serializable {
* Inversely transform the given real data set.
* <p>
* The formula is $ f_k = (1/N) [F_0 + (-1)^k F_N] +
* (2/N) \Sigma_{n=0}^{N-1} F_n \cos(\pi nk/N) $
* (2/N) \Sigma_{n=1}^{N-1} F_n \cos(\pi nk/N) $
* </p>
*
* @param f the real data array to be inversely transformed
@ -157,7 +157,7 @@ public class FastCosineTransformer implements Serializable {
* Inversely transform the given real function, sampled on the given interval.
* <p>
* The formula is $ f_k = (1/N) [F_0 + (-1)^k F_N] +
* (2/N) \Sigma_{n=0}^{N-1} F_n \cos(\pi nk/N) $
* (2/N) \Sigma_{n=1}^{N-1} F_n \cos(\pi nk/N) $
* </p>
*
* @param f the function to be sampled and inversely transformed
@ -181,7 +181,7 @@ public class FastCosineTransformer implements Serializable {
* Inversely transform the given real data set.
* <p>
* The formula is $ f_k = \sqrt{1/2N} [F_0 + (-1)^k F_N] +
* \sqrt{2/N} \Sigma_{n=0}^{N-1} F_n \cos(\pi nk/N) $
* \sqrt{2/N} \Sigma_{n=1}^{N-1} F_n \cos(\pi nk/N) $
* </p>
*
* @param f the real data array to be inversely transformed
@ -199,7 +199,7 @@ public class FastCosineTransformer implements Serializable {
* Inversely transform the given real function, sampled on the given interval.
* <p>
* The formula is $ f_k = \sqrt{1/2N} [F_0 + (-1)^k F_N] +
* \sqrt{2/N} \Sigma_{n=0}^{N-1} F_n \cos(\pi nk/N) $
* \sqrt{2/N} \Sigma_{n=1}^{N-1} F_n \cos(\pi nk/N) $
* </p>
*
* @param f the function to be sampled and inversely transformed

3
src/site/xdoc/changes.xml
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@ -41,6 +41,9 @@ Commons Math Release Notes</title>
<body>
<release version="1.3-SNAPSHOT" date="TBD"
description="TBD">
<action dev="luc" type="fix" issue="MATH-205" due-to="Roman Werpachowski">
Fixed formula in fast cosine transformer javadoc comments.
</action>
<action dev="brentworden" type="fix" issue="MATH-193" due-to="Michael Heuer and Sebb">
Javadoc and style fixes.
</action>