BiLinInterp() function

BiLinInterp() function

BiLinInterp(argument list…)

This function returns the bilinearly interpolated value of z=f(x,y). The function uses the following arguments:

Argument	Description	Restrictions
x	the value of x for which we wish to determine the value of z = f(x,y)	must be within the domain of xvec, that is: min(xvec) <= x <= max(xvec)
y	the value of y for which we wish to determine the value of z = f(x,y)	must be within the domain of yvec, that is: min(yvec) <= y <= max(yvec)
xvec	a row vector (or array) of known x values	must be in strictly ascending order
yvec	a column vector (or array) of known y values	must be in strictly ascending order
zmatrix	a matrix of known values of z = f(x,y)	if xvec is N elements in size, and yvec is M elements in size, then zmatrix must be M rows by N columns