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--- hybrj_.3.orig 2009-01-02 18:19:15.000000000 +0100
+++ hybrj_.3 2009-01-02 18:23:47.000000000 +0100
@@ -14,7 +14,7 @@
.BI "void hybrj1_ (void (*" fcn ")(int *" n ,
.BI "double *" x ,
.BI "double *" fvec ,
-.BI "double *" fjec ,
+.BI "double *" fjac ,
.BI "int *" ldfjac ,
.BI "int *" iflag ),
.RS 4
@@ -35,7 +35,7 @@
.BI "void hybrj_ (void (*" fcn ")(int *" n ,
.BI "double *" x ,
.BI "double *" fvec ,
-.BI "double *" fjec ,
+.BI "double *" fjac ,
.BI "int *" ldfjac ,
.BI "int *" iflag ),
.RS 4
@@ -72,8 +72,8 @@
The purpose of \fBhybrj_\fP is to find a zero of a system of
\fIn\fP nonlinear functions in \fIn\fP variables by a modification
of the Powell hybrid method. The user must provide a
-subroutine which calculates the functions. The Jacobian is
-then calculated by a forward-difference approximation.
+subroutine which calculates the functions and a subroutine which calculates
+the Jacobian.
.PP
\fBhybrj1_\fP serves the same function but has a simplified calling
sequence.
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