From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Sun, 21 Mar 2004 19:31:26 +0000 (+0000)
Subject: introduction updated
X-Git-Tag: v0_0_4~10
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=e5632ea17a3a417084b1b12d3c5b1cc0f8bf78c3;p=helm.git

introduction updated
---

diff --git a/helm/mathql/doc/mathql_introduction.tex b/helm/mathql/doc/mathql_introduction.tex
index c006e85c5..a989a5ece 100644
--- a/helm/mathql/doc/mathql_introduction.tex
+++ b/helm/mathql/doc/mathql_introduction.tex
@@ -4,6 +4,18 @@ This paper presents {\MathQL} version 4 which is the latest version of the
 language, fully developed by Ferruccio Guidi.  
 For a description of the previous versions of {\MathQL} see: \cite{Gui03}
 (version 3), \cite{GS03} (version 2), \cite{Lor02} (version 1).
+The main novelties of this version are the elimination of some cast operators
+(producing a substantial simplification in the query structure and semantics,
+see \secref{Operational}), a clear distinction between the core language and
+the auxiliary functions of the basic library, a support for query generating
+functions, the possibility of extending the language adding new libraries of
+functions and a more uniform textual syntax. 
+{\MathQL}.4 incorporates the features of {\MathQL}.3 not documented on paper%
+\footnote
+{See the ``what's new'' section of {\MathQL} Web Site:
+\URI{helm.cs.unibo.it/mathql}.}
+and adds some new features improving {\MathQL} capabilities to post-process
+the query results.  
 
 \subsection{Textual syntax}
 
diff --git a/helm/mathql/doc/mathql_macros.sty b/helm/mathql/doc/mathql_macros.sty
index 569f86dc8..a6701208e 100644
--- a/helm/mathql/doc/mathql_macros.sty
+++ b/helm/mathql/doc/mathql_macros.sty
@@ -1,5 +1,6 @@
 \usepackage{fguidi-defs} 
 
+\newcommand{\secref}[1]{Section~\ref{#1}}
 \newcommand{\subsecref}[1]{Subsection~\ref{#1}}
 \newcommand{\figref}[1]{Figure~\ref{#1}}
 
diff --git a/helm/mathql/doc/mathql_operational.tex b/helm/mathql/doc/mathql_operational.tex
index a1cbe954a..f37225073 100644
--- a/helm/mathql/doc/mathql_operational.tex
+++ b/helm/mathql/doc/mathql_operational.tex
@@ -1,4 +1,4 @@
-\section {Operational semantics}
+\section {Operational semantics} \label {Operational}
 
 This section describes {\MathQL} semantics, that we present in a natural
 operational style \cite{Lan98,Win93}.