--- ray/doc/man/man1/rcalc.1	2004/06/09 16:00:12	1.6
+++ ray/doc/man/man1/rcalc.1	2007/09/04 17:36:41	1.8
@@ -1,4 +1,4 @@
-.\" RCSid "$Id: rcalc.1,v 1.6 2004/06/09 16:00:12 greg Exp $"
+.\" RCSid "$Id: rcalc.1,v 1.8 2007/09/04 17:36:41 greg Exp $"
 .TH RCALC 1 4/6/99 RADIANCE
 .SH NAME
 rcalc - record calculator
@@ -56,6 +56,11 @@ A special form of the
 option may be followed immediately by a 'd' or an 'f' and an optional
 count, which defaults to 1, indicating the number of double or float
 binary values to read per record on the input file.
+If the input is byte-swapped, the
+.I \-iD
+or
+.I \-iF
+options may be substituted.
 If binary input is specified, no format string or file is needed.
 .PP
 A
@@ -68,6 +73,11 @@ or
 .I \-of
 options do not require a count, as this will be determined by the
 number of output channels in the given expressions.
+If byte-swapped output is desired, the
+.I \-oD
+or
+.I \-oF
+options may be substituted.
 .PP
 The
 .I \-p
@@ -283,12 +293,12 @@ trigonometric functions.
 inverse trigonometric functions.
 .TP
 .BR "atan2(y, x)"
-inverse tangent of y/x (range -pi to pi).
+inverse tangent of y/x (range \-pi to pi).
 .SH EXAMPLE
 To print the square root of column two in column one,
 and column one times column three in column two:
 .IP "" .2i
-rcalc -e '$1=sqrt($2);$2=$1*$3' inputfile > outputfile
+rcalc \-e '$1=sqrt($2);$2=$1*$3' inputfile > outputfile
 .SH AUTHOR
 Greg Ward
 .SH BUGS