This video demonstrates how to use the function INTERPXY to interpolate on a graph generated from discrete (x,y) data set points in both Excel and Google Sheets by the ais of splines.
This video demonstrates how to use the function INTERPXYZ to interpolate from a set of discrete (x,y,z) data points in both Excel and Google Sheets. INTERPXYZ is based on natural neighbor algorithm.
This video demonstrates how to use the function GRIDXYZ to interpolate a set of scattered (x,y,z) data points onto a uniform rectilinear grid in both Excel and Google Sheets. And, how to generate a surface plot in Excel using the interpolated grid data. GRIDXYZ is based on natural neighbor algorithm.
