When a description of an arithmetic operator below uses the phrase "the numeric arguments are converted to a common real type", this means that the operator implementation for built-in types works as ...

A regular expression (regex, regexp) is a string-searching algorithm, which you can use for making a search pattern in a sequence of characters or strings. Usually, these patterns are used to find or ...

This parser calculates the results of a single simple expression, disallowing any complicated functions or control structures, with support for custom variable and function environment contexts. The ...