But for cubic optimization problems with no constraints, sum of squares becomes a handy test for finding locally optimal minimum solutions. Picture the graph of a polynomial function as a curve ...

Cubic Phase Function (CPF): A computational tool used for the estimation of parameters in polynomial phase signals, valued for its simplicity and efficiency in reducing non-linearities.

A controversial White House economic advisor acknowledged his "cubic model" demonstrating zero coronavirus deaths by May 15 was generated by "a canned function on Excel, a cubic polynomial." The ...