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Hi 
Subject: spline fit & 2nd derivatives From: Teja Muppirala Date: 26 Oct, 2010 12:23:03 Message: 2 of 4 
You could probably just differentiate numerically. But if you wanted to do it analytically, that's not so hard either. The coefficients over each interval are given to you in the coefs field of the spline structure. You can differentiate these very easily. It turns out like this: 
"Teja Muppirala" <teja.muppiralaRemoveThis@mathworks.com> wrote in message <ia6h77$r7k$1@fred.mathworks.com>... 
Subject: spline fit & 2nd derivatives From: John D'Errico Date: 28 Oct, 2010 10:42:03 Message: 4 of 4 
"Dave400 " <dave.rogers@hotmail.co.uk> wrote in message <ia6519$nd2$1@fred.mathworks.com>... 
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