Quadratic approximation is a three-dimensional analogue of the two-dimensional Padé approximation. The advantages of employing quadratic approximation are demonstrated by several examples. With automatic computers having a relatively inexpensive square root instruction, quadratic approximation is an attractive alternative to Padé approximation if convergence of the Padé approximation is not rapid.
No takes yet. Share an insight, caveat, or question.
Robert E. Shafer (1974) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: