Space Telescope Science Institute
Intro to HST Data Handbooks 8.0 May 2011
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Introduction to the HST Data Handbooks > Preface > Typographic Conventions

Typographic Conventions
To help you understand the material in this Data Handbook, we will use a few consistent typographic conventions.
Visual Cues
The following typographic cues are used:
bold words identify an STSDAS, IRAF, or PyRAF task or package name.
typewriter-like words identify a file name, system command, or response that is typed or displayed.
italic type indicates a new term, an important point, a mathematical ­variable, or a task parameter.
SMALL CAPS identifies a header keyword.
Occasional side comments point out three types of information, each identified by an icon in the left margin.

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