This is a tool that performs one or more bilinear interpolations, given a rectangular grid of known x and y, with associated z = f(x,y) values. The tool does not support extrapolation and warns the user if any points would require this.

For the performing of the interpolations(s), it is necessary to supply the following information:

• The number of x values in the known rectangular grid.
• The number of y values in the known rectangular grid.
• An x and y value for each step along the known grid in the respective directions.
• For each point in the known grid, an associated z value, where z = f(x,y).
• The number of points to be interpolated.
• An x value for each point to be interpolated.
• A y value for each point to be interpolated.

If all the above information is supplied, the tool performs the interpolation(s) and returns the resulting z values.

Associated tool link: http://www.coggit.com/tools/bilinear_interpolator.html