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				| BILINEAR | Computes array using bilinear interpolation. | 
				| GRID_INPUT | Preprocesses and sorts two-dimensional scattered data points, and removes duplicate values. | 
				| GRID3 | Creates a regularly-gridded 3D dataset from a set of scattered 3D nodes. | 
				| GRIDDATA | Interpolates scattered data values and locations sampled on a plane or a sphere to a regular grid. | 
				| MIN_CURVE_SURF | Interpolates points with a minimum curvature surface or a thin-plate-spline surface. Useful with CONTOUR. | 
				| SPH_SCAT | Performs spherical gridding. | 
				| SPL_INIT | Establishes the type of interpolating spline. | 
				| SPL_INTERP | Performs cubic spline interpolation (Numerical Recipes). | 
				| SPLINE | Performs cubic spline interpolation. | 
				| SPLINE_P | Performs parametric cubic spline interpolation. | 
				| TRI_SURF | Interpolates gridded set of points with a smooth quintic surface. | 
				| TRIANGULATE | Constructs Delaunay triangulation of a planar set of points. | 
				| VALUE_LOCATE | Finds the intervals within a given monotonic vector that brackets a given set of one or more search values. | 
				| VORONOI | Computes Voronoi polygon given Delaunay triangulation. |