nbsp;=&nbsp;2&nbsp;&nbsp;relative&nbsp;error&nbsp;between&nbsp;two&nbsp;consecutive&nbsp;iterates
is at most <I>xtol</I>.
<P>
<BR>&nbsp;&nbsp;<I>info</I>&nbsp;=&nbsp;3&nbsp;&nbsp;conditions&nbsp;for&nbsp;<I>info</I>&nbsp;=&nbsp;1&nbsp;and&nbsp;<I>info</I>&nbsp;=&nbsp;2&nbsp;both&nbsp;hold.
<P>
<BR>&nbsp;&nbsp;<I>info</I>&nbsp;=&nbsp;4&nbsp;&nbsp;the&nbsp;cosine&nbsp;of&nbsp;the&nbsp;angle&nbsp;between&nbsp;fvec&nbsp;and&nbsp;any
column of the Jacobian is at most gtol in absolute value.
<P>
<BR>&nbsp;&nbsp;<