singular_radius
Singular radius
Specification
Alias: None
Arguments: REAL
Default: -1. (use NL2SOL internal default of 1)
Description
singular_radius works in conjunction with singular_conv_tol
to test for underdetermined least-squares problems (stop when the relative
reduction yet possible in the sum of squares appears less than
singular_conv_tol for steps of scaled length at most
singular_radius).
The internal default results in the internal use of steps of length 1. The default is selected with a value of -1.
