X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fexpressions.texi;h=7226116bd13e8897c29c2dbf120acf913ca17857;hb=983dc88647eb2826dd866c8109cf3968ce1e79a9;hp=1570d0dfb437ce72072a677b52898484534395cd;hpb=30b49ef972d0ff4cd5f5ecda6a447968bc05f356;p=pspp

diff --git a/doc/expressions.texi b/doc/expressions.texi
index 1570d0dfb4..7226116bd1 100644
--- a/doc/expressions.texi
+++ b/doc/expressions.texi
@@ -331,9 +331,13 @@ Returns the remainder when @var{number} is divided by 10.  If
 @end deftypefn
 
 @cindex rounding
-@deftypefn {Function} {} RND (@var{number})
-Takes the absolute value of @var{number} and rounds it to an integer.
-Then, if @var{number} was negative originally, negates the result.
+@deftypefn {Function} {} RND (@var{number} [, @var{mult}[, @var{fuzzbits}]])
+Rounds @var{number} and rounds it to a multiple of @var{mult} (by
+default 1).  Halves are rounded away from zero, as are values that
+fall short of halves by less than @var{fuzzbits} of errors in the
+least-significant bits of @var{number}.  If @var{fuzzbits} is not
+specified then the default is taken from SET FUZZBITS (@pxref{SET
+FUZZBITS}), which is 6 unless overridden.
 @end deftypefn
 
 @cindex truncation
@@ -617,7 +621,7 @@ format for @var{format}, system-missing is returned.
 @end deftypefn
 
 @cindex strings, searching backwards
-@deftypefn {Function} {} RINDEX (@var{string}, @var{format})
+@deftypefn {Function} {} RINDEX (@var{haystack}, @var{needle})
 Returns a positive integer indicating the position of the last
 occurrence of @var{needle} in @var{haystack}.  Returns 0 if
 @var{haystack} does not contain @var{needle}.  Returns system-missing if
@@ -630,7 +634,7 @@ Searches @var{haystack} for the last occurrence of each part, and
 returns the largest value.  Returns 0 if @var{haystack} does not contain
 any part in @var{needle}.  It is an error if @var{needle_len} does not
 evenly divide the length of @var{needle}.  Returns system-missing
-if @var{needle} is an empty string.
+if @var{needle} is an empty string or if needle_len is less than 1.
 @end deftypefn
 
 @cindex padding strings