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-rw-r--r--doc/expr.n13
1 files changed, 6 insertions, 7 deletions
diff --git a/doc/expr.n b/doc/expr.n
index 5053bd1..31c146a 100644
--- a/doc/expr.n
+++ b/doc/expr.n
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: expr.n,v 1.13 2004/05/24 12:47:56 dkf Exp $
+'\" RCS: @(#) $Id: expr.n,v 1.14 2004/09/06 09:44:56 dkf Exp $
'\"
.so man.macros
.TH expr n 8.5 Tcl "Tcl Built-In Commands"
@@ -19,7 +19,7 @@ expr \- Evaluate an expression
.SH DESCRIPTION
.PP
-Concatenates \fIarg\fR's (adding separator spaces between them),
+Concatenates \fIarg\fRs (adding separator spaces between them),
evaluates the result as a Tcl expression, and returns the value.
The operators permitted in Tcl expressions are a subset of
the operators permitted in C expressions, and they have the
@@ -62,7 +62,7 @@ possible at all.)
.PP
Operands may be specified in any of the following ways:
.IP [1]
-As an numeric value, either integer or floating-point.
+As a numeric value, either integer or floating-point.
.IP [2]
As a Tcl variable, using standard \fB$\fR notation.
The variable's value will be used as the operand.
@@ -84,11 +84,10 @@ As a mathematical function whose arguments have any of the above
forms for operands, such as \fBsin($x)\fR. See below for a list of defined
functions.
.LP
-Where substitutions occur above (e.g. inside quoted strings), they
+Where the above substitutions occur (e.g. inside quoted strings), they
are performed by the expression's instructions.
-However, an additional layer of substitution may already have
-been performed by the command parser before the expression
-processor was called.
+However, the command parser may already have performed one layer of
+substitution before the expression processor was called.
As discussed below, it is usually best to enclose expressions
in braces to prevent the command parser from performing substitutions
on the contents.