From d3ed0a0250f2fe8d1ee637cf5f9fc42ea6d106e8 Mon Sep 17 00:00:00 2001
From: Emmanuel Christophe <emmanuel.christophe@orfeo-toolbox.org>
Date: Sun, 26 Apr 2009 21:57:09 +0800
Subject: [PATCH] DOC: doxygen math formula

---
 Code/Learning/otbSpectralAngleKernelFunctor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Code/Learning/otbSpectralAngleKernelFunctor.h b/Code/Learning/otbSpectralAngleKernelFunctor.h
index e997d1060a..ce292d5e32 100644
--- a/Code/Learning/otbSpectralAngleKernelFunctor.h
+++ b/Code/Learning/otbSpectralAngleKernelFunctor.h
@@ -35,7 +35,7 @@ namespace otb
  *
  * \f$ frac{1}{\sqrt{ c_0 + \cos\textrm{SAM(x,y)} }} \f$ where \f$ \textrm{SAM(x,y)} \f$ is
  * Spectral Angle Measure:
- * \f$ \textrm{SAM}(x,y) = \acos\left( \frac{x \cdot y}{\|x\| \|y\|} \right) \f$.
+ * \f$ \textrm{SAM}(x,y) = \cos^{-1}\left( \frac{x \cdot y}{\|x\| \|y\|} \right) \f$.
  *
  * The only parameter \f$ c_0 \f$ is to be fixed by the \code SetValue \endcode
  * interface with keyword Coef (def 2.0).
-- 
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