Although we're starting off our first programming ... A string variable is a string of alphanumeric characters and allowed symbols that are contained within quotation marks. For example, "Hello ...

When you define macro variables, you can include macro functions in the expressions to manipulate the value of the variable before the value is stored. For example, you can use functions that scan ...

Bash functions, unlike functions in most programming languages do not allow you to return ... or you can pass in the name of a variable to use as the result variable. The examples below describe these ...

THE second edition of this useful book will be warmly welcomed. The theory of functions of a complex variable plays an increasingly important part in the applications of mathematics to physical ...

THE theory of functions of a real variable is a subject of fairly recent date and is necessarily expanding as new theorems are discovered and fresh generalisations effected. On the other hand ...

We often read (including in the book Advanced Bash-Scripting Guide by Mendel Cooper) that if we pass variable names as parameters to functions, they will be treated as string literals and cannot be ...