/sys/man/*/*: fix perms (sorry)

[plan9front.git] / sys / man / 1 / fplot

diff --git a/sys/man/1/fplot b/sys/man/1/fplot
index 73791309c5dde0c575b06524a2fb41c6ad8dedca..37841ac467e375a61a51a8a4862c6829f52322bf 100644 (file)
--- a/sys/man/1/fplot
+++ b/sys/man/1/fplot
@@ -29,7 +29,7 @@ option accepts as argument the x and y ranges, in the format
 .LR "xmin:xmax ymin:ymax".
 .PP
 Each function to be plotted may be a combination of the independent variable x, 
-the elementary operations (+, -, *, and /), and the functions described in
+the elementary operations (+, -, *, / and %), and the functions described in
 .IR sin (2)
 and
 .IR exp (2).
@@ -49,9 +49,15 @@ fplot -c -s 400x400 'sqrt(x*x)' 'x^3' | page
 .IR sin (2),
 .IR image (6),
 .IR plot (1).
-
 .SH DIAGNOSTICS
 .I Fplot
 either exits with
 .LR "syntax error"
 or an empty status.
+.SH BUGS
+Parentheses after unary operators are not special, e.g. sin(x)/2 is parsed as sin x/2 = sin(x/2) and not (sin x)/2.
+.PP
+There is no unary plus or minus.
+.SH HISTORY
+.I Fplot
+first appeared in 9front (July, 2011).