Re: Values from InterpolatingFunction
- To: mathgroup@smc.vnet.net
- Subject: [mg11875] Re: [mg11847] Values from InterpolatingFunction
- From: "Jürgen Tischer" <jtischer@pitagoras.univalle.edu.co>
- Date: Fri, 3 Apr 1998 03:45:33 -0500
Hallo Volker, I imagine you did something like the following: In[72]:= f = FunctionInterpolation[x^2, {x, 0, 2}] Out[72]= InterpolatingFunction[{{0,2.}},"<>"] In[76]:= D[f[t],t] Out[76]= InterpolatingFunction[{{0,2.}},"<>"][t] and then you were stuck. Write instead In[77]:= g[t_]=D[f[t],t] Out[77]= InterpolatingFunction[{{0,2.}},"<>"][t] and use g to find your values. J|rgen -----Original Message----- From: Volker Doerr <vd@cascade.de> To: mathgroup@smc.vnet.net Subject: [mg11875] [mg11847] Values from InterpolatingFunction > >Hello to all, > >I have the following > > InterpolatingFunction[{{0.,365.}},<>][t] > >produced by Function D from another InterpolatingFunction, and want >simply to get the approximate values at specific points. I cannot find >a direct solution, probably because the function has symbolic form. > >Anybody out there who can help me? > >Thanx a lot, > >V o l k e r >vd@cascade.de > > >