Guide to LaTeX (4th Edition) (Tools and Techniques

H.1. Brief description of the L AT E X commands 551
\input{file} . . . . . . . . . . . . . . . . . . . . . . (9.1.1) – 207
Inserts the contents of the file with the root name file and extension
.tex into the current text at the point where the command appears.
The file that is read in may also contain further \input commands.
\InputIfFileExists{file name}{true}{false} . . . . . (D.2.8) – 447
Tests if the file file name can be found in the places where LAT EX looks for files; if so, the code true is executed and the file is input;
otherwise, false is executed.
\int [m] produces
. . . . . . . . . . . . . . . . . . (5.2.5) – 123
\iint [m][a] produces
. . . . . . . . . . . . . . . (12.2.2) – 260
\iiint [m][a] produces
. . . . . . . . . . . . . . (12.2.2) – 260
\iiiint [m][a] produces
. . . . . . . . . . . . . (12.2.2) – 260
\intextsep . . . . . . . . . . . . . . . . . . . . . . . (7.3) – 172
The vertical spacing between floats in the middle of a page and the
surrounding text. A new value is assigned with the \setlength
command:
\setlength{\intextsep}{10pt plus2pt minus3pt}
\invisible . . . . . . . . . . . . . . . . . . . . . (15.1.2) – 326
In slides class, a declaration that makes the following text be printed
in ‘invisible ink’, that is, it takes up as much space as though it were
there. It remains in effect until the end of the environment, or end of
the curly braces, in which it was issued, or until \visible is given.
It is used for making overlays.
\iota [m] produces ι . . . . . . . . . . . . . . . . . . (5.3.1) – 125
\itdefault . . . . . . . . . . . . . . . . . . . . . . (A.3.1) – 372
This command defines the shape attribute that is selected with the
\itshape command. It may be redefined with \renewcommand:
\renewcommand{\itdefault}{it}
\item[label] . . . . . . . . . . . . . . . . . . (4.3), (4.4.1) – 69, 74
Produces a label and the start of an item text in a list environment.
Without the optional argument, the label is generated according to
the type of environment, for example numbers for the enumerate
environment. The optional argument inserts label in place of this
standard item label.
\item . . . . . . . . . . . . . . . . . . . . . . . . . (9.4.1) – 225
Produces a main entry in theindex environment.
\itemindent . . . . . . . . . . . . . . . . . . . . . . . (4.4.2) – 77
The amount by which the label and the text of the first line after each
\item is indented in a list environment. The standard value is 0 pt,
but a new value may be assigned with the \setlength command:
\setlength{\itemindent}{1em}