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dimensional analysis

noun, Physics.
a method for comparing the dimensions of the physical quantities occurring in a problem to find relationships between the quantities without having to solve the problem completely.
Compare dimension (def 6).
Origin of dimensional analysis
First recorded in 1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Contemporary definitions for dimensional analysis

a method of mathematical analysis that focuses on the dimensions of length, mass, time, etc., which aims to simplify a problem by dealing only with essential parameters; a technique of calculating with physical quantities in which units are included and treated in the same way as numbers

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mathematics's 21st Century Lexicon
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