Patent ID: 6978289

Claim:
A method for obtaining a set of rounded polynomial coefficients of a function comprising: (a) obtaining a set of polynomial coefficients C 2j of a function where j=0, 1, 2, . . . , n; (b) rounding a first coefficient C 2j to obtain a first rounded coefficient A 2j for j=0; (c) calculating a first rounding error E 2j for j=0 by subtracting said first rounded coefficient A 2j for j=0 from said first coefficient C 2j for j=0; (d) incrementing the value of j by one; (e) calculating a value for next rounded coefficient A 2j by rounding the sum of coefficient C 2j and rounding error E 2j-2 ; (f) calculating a value for next rounding error E 2j by subtracting a value of A 2j from the sum of coefficient C 2j and rounding error E 2j-2 ; and repeating (d), (e), and (f) until the value of j exceeds a predetermined maximum value.