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some corrections + angles in radians

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Roberto Ierusalimschy 2002-08-14 17:07:25 -03:00
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commit 82a3be0671
1 changed files with 29 additions and 14 deletions
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manual.tex
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@ -1,7 +1,7 @@
% $Id: manual.tex,v 1.60 2002/08/13 19:44:47 roberto Exp roberto $
% $Id: manual.tex,v 1.61 2002/08/13 20:00:51 roberto Exp roberto $
%{[(
\documentclass[11pt,twoside,draft]{article}
\documentclass[11pt,twoside]{article}
\usepackage{fullpage}
\usepackage{bnf}
\usepackage{graphicx}
@ -134,7 +134,7 @@ Waldemar Celes
\tecgraf\ --- Computer Science Department --- PUC-Rio
}
%\date{{\small \tt\$Date: 2002/08/13 19:44:47 $ $}}
%\date{{\small \tt\$Date: 2002/08/13 20:00:51 $ $}}
\maketitle
@ -3138,7 +3138,7 @@ from the end of the string.
Thus, the last character is at position \Math{-1}, and so on.
The string library provides all its functions inside the table
\DefLIB{string}.
\IndexLIB{string}.
\subsubsection*{\ff \T{string.byte (s [, i])}}\DefLIB{string.byte}
Returns the internal numerical code of the \M{i}-th character of \verb|s|.
@ -3422,7 +3422,7 @@ A pattern cannot contain embedded zeros. Use \verb|%z| instead.
\subsection{Table Manipulation}
This library provides generic functions for table manipulation,
It provides all its functions inside the table \DefLIB{table}.
It provides all its functions inside the table \IndexLIB{table}.
Most functions in the table library library assume that the table
represents an array or a list.
@ -3559,10 +3559,8 @@ The library provides the following functions:
\end{verbatim}
plus a variable \IndexLIB{math.pi}.
Most of them
are only interfaces to the homonymous functions in the C~library,
except that, for the trigonometric functions,
all angles are expressed in \emph{degrees}, not radians.
The functions \verb|math.deg| and \verb|math.rad| can be used to convert
are only interfaces to the homonymous functions in the C~library.
The functions \verb|math.deg| and \verb|math.rad| convert
between radians and degrees.
The function \verb|math.max| returns the maximum
@ -3593,14 +3591,14 @@ and all input/output operations are over those default files.
The second style uses explicit file descriptors.
When using implicit file descriptors,
all operations are supplied by table \DefLIB{io}.
all operations are supplied by table \IndexLIB{io}.
When using explicit file descriptors,
the operation \DefLIB{io.open} returns a file descriptor,
the operation \IndexLIB{io.open} returns a file descriptor,
and then all operations are supplied as methods by the file descriptor.
Moreover, the table \verb|io| also provides
three predefined file descriptors:
\DefLIB{io.stdin}, \DefLIB{io.stdout}, and \DefLIB{io.stderr},
\IndexLIB{io.stdin}, \IndexLIB{io.stdout}, and \IndexLIB{io.stderr},
with their usual meaning from C.
A file handle is a userdata containing the file stream (\verb|FILE*|),
@ -3613,7 +3611,8 @@ and some value different from \nil{} on success.
\subsubsection*{\ff \T{io.close ([handle])}}\DefLIB{io.close}
Equivalent to \verb|fh:close| over the default output file.
Equivalent to \verb|handle:close()|.
Without a \verb|handle|, closes the default output file.
\subsubsection*{\ff \T{io.flush ()}}\DefLIB{io.flush}
@ -3746,7 +3745,7 @@ plus a string describing the error.
\subsection{Operating System Facilities} \label{libiosys}
This library is implemented through table \DefLIB{os}.
This library is implemented through table \IndexLIB{os}.
\subsubsection*{\ff \T{os.clock ()}}\DefLIB{os.clock}
@ -4120,6 +4119,11 @@ The precedence of \rwd{or} is smaller than the precedence of \rwd{and}.
\item
\rwd{in} is a reserved word.
\item
The old construction \verb|for k,v in t|, where \verb|t| is a table,
is deprecated (although it is still supported).
Use \verb|for k,v in pairs(t)| instead.
\item
When a literal string of the form \verb|[[...]]| starts with a newline,
this newline is ignored.
@ -4137,6 +4141,17 @@ Most library functions now are defined inside tables.
There is a compatibility script (\verb|compat.lua|) that
redefine most of them as global names.
\item
In the math library, angles are expressed in radians.
With the compatibility script (\verb|compat.lua|),
functions still work in degrees.
\item
The \verb|call| function is deprecated.
Use \verb|f(unpack(tab))| instead of \verb|call(f, tab)|
for unprotected calls,
or the new \verb|pcall| function for protected calls.
\item
\verb|dofile| do not handle errors, but simply propagate them.