Algebra - Integer Exponents - Lamar University

Most writers treated it as an oncoming cataclysmic event, with characters randomly spouting the number (or even having aliens scream the number in phonetic English).

Class Notes Each class has notes available

- This places parentheses around a number if that number is less than zero
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Spell on the Phone in English: ICAO/ITU/NATO Spelling Alphabet

Regular expressions allow you to group and capture portions of the match for later use. To extract an American telephone number of the form from a string:

Avoid confusion when spelling on the phone

Perl 5.10 added named captures, which allow you to capture portions of matches from applying a regular expression and access them later. For example, when extracting a phone number from contact information:

Wolf Serial Numbers - Sub-Zero
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Using Regular Expressions in Oracle | Oracle FAQ

bash - Arrays in unix shell? - Stack Overflow

In Depth Explanation of Cisco IOS and IOS-XE Call Routing