Libraries tagged by expressions parser

PHP parser for mathematical expressions, including elementary functions, variables and implicit multiplication. Also supports symbolic differentiation.

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Simple DOM wrapper to select nodes using either CSS or XPath expressions and manipulate results quickly and easily.

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Simple math expressions calculator

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PHP Mathematical expression parser and evaluator

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Ultra lightweight Cron Expression parser for PHP

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Lexical analyzer with individual token definition with regular expressions

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StringCalc is a PHP calculator library for mathematical terms (expressions) passed as strings.

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Standard (V7) compliant crontab expression parser/validator with support for time zones

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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with different data types like numbers, big numbers, complex numbers, fractions, units, and matrices.

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Parsing and evaluating mathematical formulas given as strings.

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An extensible mathematical expression parser and evaluator.

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Simple mathematical expression parser and calculator.

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PHP parser for mathematical expressions, including elementary functions, variables and implicit multiplication. Also supports symbolic differentiation.

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Simple mathematical expression/equation parser and calculator.

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PEG (parsing expression grammar) compiler for PHP

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