Linear & Polynomial Interpolation for TI-Nspire Ver 1.2 by allcalc.org ----- Usage 1. Input each x1,y1,x2,y2... var_x and var_y alternately or matrix (2*n) type DATA at prompt for DATA.x 2. When you finished to insert DATA, type "end" at prompt for DATA.x 3. If there's no error with DATA sets, function i.linear() and i.polynomial() will be created. 4. Use functions to find unkown value "y" 5. Additionally, data.sub(matrix) and data.subx,data.suby(list) will be made too. Caution To stop a program ...