Let z=g(x,y) be the interpolating function, satisfying zij=g(xi,yj). A twodimensional interpolation to find the value of g at the point (x,y) may be done by fi...Let z=g(x,y) be the interpolating function, satisfying zij=g(xi,yj). A twodimensional interpolation to find the value of g at the point (x,y) may be done by first performing n+1 one-dimensional interpolations in y to find the value of g at the n+1 points (x0,y),(x1,y),…,(xn,y), followed by a single one-dimensional interpolation in x to find the value of g at (x,y).
