SUBROUTINE FDM (GDM, f, h, m)
ARGUMENTS
OUT
GDM result real
IN
F(M) vector of values of the function real
H(M) coordinate differences H(i)=x(i+1)-x(i) i=1,m-1 real
M dimension of F and H integer
DESCRIPTION
This routine returns an estimate of the derivative at the last point, 4-th order accurate.
EXAMPLE
Number 1
Number 2
SEE ALSO
d1, d1int1, d1int2, d1intr, defvec, dn, fd1, int1d1, intrp, intrpr, spd
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