1Blurb::
2Singular convergence tolerance
3Description::
4\c singular_conv_tol
5(NL2SOL's \c sctol) is the singular convergence tolerance, which works
6in conjunction with \ref method-nl2sol-singular_radius to test for
7underdetermined least-squares problems (stop when the relative
8reduction yet possible in the sum of squares appears less then \c
9singular_conv_tol for steps of scaled length at most \ref method-nl2sol-singular_radius).
10
11The internal default is a function of machine epsilon
12(as limited by \c function_precision). The default is selected with a value of -1.
13
14Topics::
15Examples::
16Theory::
17Faq::
18See_Also::
19