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1.1
date	99.11.22.23.41.12;	author mys;	state Exp;
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############################################################
Lengths
############################################################

A length is a measure of distance. Many LaTeX commands take 
a length as an argument.
 
	\newlength: Define a new length. 
	\setlength: Set the value of a length. 
	\addtolength: Add a quantity to a length. 
	\settodepth: Set a length to the depth of something. 
	\settoheight: Set a length to the height of something. 
	\settowidth: Set a length to the width of something. 
	Predefined lengths: Lengths that are, like, predefined. 

############################################################
	\newlength ::newlength::
############################################################
\newlength{\gnat} 
The \newlength command defines the mandatory argument, \gnat, 
as a length command with a value of 0in. An error occurs if a 
\gnat command already exists. 
############################################################
	\setlength ::setlength::
############################################################
\setlength{\gnat}{length} 
The \setlength command is used to set the value of a length 
command. The length argument can be expressed in any terms 
of length LaTeX understands, i.e., inches (in), 
millimetres (mm), points (pt), etc. 
############################################################
	\addtolength ::addtolength::
############################################################
\addtolength{\gnat}{length} 
The \addtolength command increments a "length command" by the 
amount specified in the length argument. It can be a negative 
amount. 
############################################################
	\settodepth ::settodepth::
############################################################
\settodepth{\gnat}{text} 
The \settodepth command sets the value of a length command 
equal to the depth of the text argument. 
############################################################
	\settoheight ::settoheight::
############################################################
\settoheight{\gnat}{text} 
The \settoheight command sets the value of a length command 
equal to the height of the text argument. 
############################################################
	\settowidth ::settowidth::
############################################################
\settowidth{\gnat}{text} 
The \settowidth command sets the value of a length command 
equal to the width of the text argument. 

Predefined lengths

	\width ::width::
	\height ::height::
	\depth ::depth::
	\totalheight ::totalheight::

These length parameters can be used in the arguments of the 
box-making commands 

See section Spaces & Boxes. 

They specify the natural width etc. of the text in the box. 
\totalheight equals \height + \depth. To make a box with the 
text stretched to double the natural size, e.g., say 

	\makebox[2\width]{Get a stretcher} 
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