dynare/scilab/diffext.cat

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DIFFEXT Numerical approximation for hessian.
The method is Richardson`s extrapolation.
Sample call
[D,err,relerr,n] = diffext('f',x,delta,toler)
Inputs
f name of the function
x differentiation point
options matrix of algorithm parameters
delta error goal (1e-12)
toler relative error goal (1e-12)
Return
J Jacobian
NUMERICAL METHODS: MATLAB Programs, (c) John H. Mathews 1995
Modified F. Collard, August 2001
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