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IEVref:112-01-34ID:
Language:enStatus: Standard
Term: numerical value equation
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Definition: mathematical relation between numerical values based on a given quantity equation and specified units of measurement

NOTE - For the quantities Q1, Q2 and Q3 related by the quantity equation Q1 = ζ Q2 Q3, the numerical value equation is {Q1} = ζ {Q2} {Q3}, where {Q1}, {Q2}, and {Q3} denote the numerical values of Q1, Q2, and Q3, respectively, provided that they are expressed in base units or coherent derived units.

EXAMPLE In the quantity equation for kinetic energy of a particle, T = (1/2) mv2, if m = 2 kg and v = 3 m/s, then {T} = (1/2) × 2 × 32 is a numerical value equation giving the numerical value 9 of T in joules.


Publication date:2010-01
Source:ISO/IEC GUIDE 99:2007 1.25 MOD
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Internal notes:2015-05-07: Image-based entry replaced by character-based entry. JGO
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