FuncPieces
Sets strategy for PWL function approximation
| Type: | int | |
|---|---|---|
| Default value: | 0 | |
| Minimum value: | -2 | |
| Maximum value: | MAXINT |
This parameter sets the strategy used for performing a piecewise-linear approximation of a function constraint. There are a few options:
- FuncPieces >= 2: Sets the number of pieces; pieces are equal width.
- FuncPieces = 1: Uses a fixed width for each piece; the actual width is provided in the FuncPieceLength parameter.
- FuncPieces = 0: Default value; chooses automatically.
- FuncPieces = -1: Bounds the absolute error of the approximation; the error bound is provided in the FuncPieceError parameter.
- FuncPieces = -2: Bounds the relative error of the approximation; the error bound is provided in the FuncPieceError parameter.
This parameter only applies to function constraints
whose FuncPieces attribute has been
set to 
.
See the discussion of function constraints for more information.
One important note about integer-valued parameters: while the maximum
value that can be stored in a signed integer is 
, we use a
MAXINT value of 2,000,000,000. Attempting to set an integer
parameter to a value larger than this maximum will produce an error.
For examples of how to query or modify parameter values from our different APIs, refer to our Parameter Examples.
