XSLP_DELTAZLIMIT

XSLP_DELTA_Z is used to retain small derivatives which would otherwise be regarded as zero. This is helpful in avoiding local optima, but may make the linearized problem more difficult to solve because of the number of small nonzero elements in the resulting matrix. XSLP_DELTAZLIMIT can be set to a nonzero value, which is then the number of iterations for which XSLP_DELTA_Z will be used. After that, small derivatives will be set to zero.

Description	Number of SLP iterations during which to apply XSLP_DELTA_Z
Type	Integer
Default value	0
Notes	XSLP_DELTA_Z is used to retain small derivatives which would otherwise be regarded as zero. This is helpful in avoiding local optima, but may make the linearized problem more difficult to solve because of the number of small nonzero elements in the resulting matrix. XSLP_DELTAZLIMIT can be set to a nonzero value, which is then the number of iterations for which XSLP_DELTA_Z will be used. After that, small derivatives will be set to zero.
Affects routines	XSLPmaxim, XSLPminim
See also	XSLP_DELTA_Z