errlog</CODE>, and a log
of the points visited is (optionally) returned in <CODE>pointlog</CODE>.
Because the gradient is computed on-line (i.e. after each pattern)
this can be quite inefficient in Matlab.

<p>The error function value at final weight vector is returned
in <CODE>options(8)</CODE>.

<p>The optional parameters have the following interpretations.

<p><CODE>options(1)</CODE> is set to 1 to display error values; also logs error 
values in the return argument <CODE>errlog</CODE>, and the points vi