Derivation of a polynomial equation for the four-point rectangular data array. (English) Zbl 1263.65013
Summary: A quadratic polynomial equation for the four-point rectangular data array was first derived by means of the shifting operator. An alternative derivation applies a posited symbolic function that represents the forms of the coefficients in the equation. The method is illustrated by examples.
MSC:
65D05 | Numerical interpolation |
65D07 | Numerical computation using splines |
65D17 | Computer-aided design (modeling of curves and surfaces) |