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| (defmacro defunits-of [quantity base-unit & units] | |
| (let [magnitude (gensym) | |
| unit (gensym) | |
| conversions (apply hash-map base-unit 1 units)] | |
| `(defmacro ~(symbol (str "unit-of-" quantity)) | |
| [~magnitude ~unit] | |
| `(* ~~magnitude | |
| ~(relative-units ~unit ~conversions))))) |
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