Practical IDL Programming

Index

Note: Page numbers followed by f indicate figures; those followed by t indicate tables; and those followed by b indicate boxed material.

Symbols and Numbers

& (ampersand) as script statement separator, 123

* (array multiplication operator), 42–43

@ (at character)

for executing scripts, 122–123

for executing text file statements, 122

$ (dollar sign)

for continued commands, 5

for operating system commands, 5

## (matrix multiplication operator), 43–44

> (maximum operator), 41–42

< (minimum operator), 41–42

[ ) (parentheses) for arrays, 25

? (question mark)

checking for function names, 23

for online help access, 9, 23

as ternary operator, 50–51

(semicolon) for comments, 5

[ (square brackets)

appending array index, 39