Revision: 3943
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=3943&view=rev
Author: fer_perez
Date: 2007-10-14 13:44:08 -0700 (Sun, 14 Oct 2007)
Log Message:
-----------
Fix typo in a formula.
Modified Paths:
--------------
trunk/py4science/workbook/trapezoid.lyx
trunk/py4science/workbook/trapezoid.tex
Modified: trunk/py4science/workbook/trapezoid.lyx
===================================================================
--- trunk/py4science/workbook/trapezoid.lyx 2007-10-14 19:11:32 UTC (rev
3942)
+++ trunk/py4science/workbook/trapezoid.lyx 2007-10-14 20:44:08 UTC (rev
3943)
@@ -120,7 +120,7 @@
) becomes
\begin_inset Formula \begin{equation}
-\int_{a}^{b}f(x)dx\approx\frac{1}{2}\sum_{i=1}^{n}\left(x_{i}-x_{i-1}\right)\left(y_{i}+y_{i+1}\right).\label{eq:trapz}\end{equation}
+\int_{a}^{b}f(x)dx\approx\frac{1}{2}\sum_{i=1}^{n}\left(x_{i}-x_{i-1}\right)\left(y_{i}+y_{i-1}\right).\label{eq:trapz}\end{equation}
\end_inset
Modified: trunk/py4science/workbook/trapezoid.tex
===================================================================
--- trunk/py4science/workbook/trapezoid.tex 2007-10-14 19:11:32 UTC (rev
3942)
+++ trunk/py4science/workbook/trapezoid.tex 2007-10-14 20:44:08 UTC (rev
3943)
@@ -23,7 +23,7 @@
\int_{a}^{b}f(x)dx\approx\frac{h}{2}\sum_{i=1}^{n}\left(f(x_{i})+f(x_{i+1})\right).\label{eq:trapzf2}\end{equation}
One frequently receives the function values already precomputed,
$y_{i}=f(x_{i}),$
so equation~(\ref{eq:trapzf}) becomes \begin{equation}
-\int_{a}^{b}f(x)dx\approx\frac{1}{2}\sum_{i=1}^{n}\left(x_{i}-x_{i-1}\right)\left(y_{i}+y_{i+1}\right).\label{eq:trapz}\end{equation}
+\int_{a}^{b}f(x)dx\approx\frac{1}{2}\sum_{i=1}^{n}\left(x_{i}-x_{i-1}\right)\left(y_{i}+y_{i-1}\right).\label{eq:trapz}\end{equation}
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