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Numeric Patterns

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vindarel edited this page Nov 5, 2020 · 2 revisions

(= number), (/= number) patterns

These will check if the matched values are of type `number`, and if they follow the specific numeric constraints.

<, >, <=, >= patterns

These will check if the matched values are of type `real`, and if they follow the specific numeric constraints. The arguments do not match when they are `complex`, since they cannot be compared by greater/less.

(let ((x 5))
   (trivia:match x
       ((< 10)
        :lower)))
:LOWER

For a quickstart, go to the Basics section. Below is for the people already familiar with Optima.

Documentation

Implementer’s note

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