Many functions in the Wolfram Language return their results as lists of rules, including Solve, FindInstance, and FindRoot, e.g.Rule replacement can be performed using functions like Replace, ReplaceAll, ReplaceRepeated, ReplaceList, ReplacePart, and StringReplace.Note, however, that evaluates rhs immediately, so in situations where rhs should be evaluated only after the rule is used, RuleDelayed (written in shorthand as :> or ) should be used instead. A rule often contains patterns on the lhs that are replaced with appropriately transformed versions as indicated on the rhs, e.g.To request Mathematica and WolframAlpha Pro, follow the directions below. If you are interested in using Mathematica for parallel computing on a dedicated cluster, or in a distributed grid environment, please contact Paul Fish at Wolfram Research. Rule-based programming is an extremely powerful paradigm that allows many programs to be written both compactly and lucidly. CSU Fullerton's Mathematica license can be used for grid computing. The expression Rule is commonly written and displayed using the shorthand syntax or. Rule represents a rule that transforms one expression to another.

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