# FC 167 - Polynomial

The polynomial function code implements a seventh order polynomial.

Output = Ax7 + Bx6 + Cx5 + Dx4 + Ex3 + Fx2 + Gx + H

Two specifications define the coefficients A through H:

• Tunable mantissa value.

• Nontunable power of ten.

The actual value of the coefficient is the product of the mantissa and the power of ten. For example:

A = S16 x 10S17 = Aman x 10Aexp

NOTES:

1. When function code 167 is utilized as a shaping algorithm for analog in/channel (function code 222), its tunable specifications are not adaptable.

2. When function code 167 is used as a shaping algorithm, it can not at the same time also be used as a logic function because the block output will not respond to the specification S1 input.

3. Multiple instances and combinations of function code 177 and 222 function blocks may utilize the same function code 167 function block as a shaping algorithm. The function code 167 shaping algorithm function block is not required to be in the same segment as the function code 177 or function code 222 blocks. Outputs:

 Blk Type Description N R Result of polynomial evaluation

Specifications:

 Spec Tune Default Type Range Description S1 N 5 I Note 1 Block address of X input S2 Y 0.000 R Full Mantissa of H coefficient S3 N 0.000 R Full Power of 10 of H coefficient S4 Y 0.000 R Full Mantissa of G coefficient S5 N 0.000 R Full Power of 10 of G coefficient S6 Y 0.000 R Full Mantissa of F coefficient S7 N 0.000 R Full Power of 10 of F coefficient S8 Y 0.000 R Full Mantissa of E coefficient S9 N 0.000 R Full Power of 10 of E coefficient S10 Y 0.000 R Full Mantissa of D coefficient S11 N 0.000 R Full Power of 10 of D coefficient S12 Y 0.000 R Full Mantissa of C coefficient S13 N 0.000 R Full Power of 10 of C coefficient S14 Y 0.000 R Full Mantissa of B coefficient S15 N 0.000 R Full Power of 10 of B coefficient S16 Y 0.000 R Full Mantissa of A coefficient S17 N 0.000 R Full Power of 10 of A coefficient

NOTES:

1. Maximum values are:9,998 for the BRC-100, IMMFP11/12 and 31,998 for the HAC