Introduction - If you have any usage issues, please Google them yourself
C2: 1 Lagrange interpolation interpolation (POLINT) 2 rational function interpolation (RATINT) 3 Cubic Spline Interpolation (SPLINE (second derivative value)-> SPLINT (function value)) 4 sorted list of search method (LOCATE ( dichotomy), HUNT (correlation method)) 5 interpolation polynomial (POLCOE (n2), POLCOF (n3)) 6 dual Lagrange interpolation (POLIN2) 7 bicubic spline interpolation (SPLIE2)