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units(varargin)

version 1.0.0.0 (6.49 KB) by Nikolay
Consistent conversion of physical units

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Updated 17 Jan 2016

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input: x1 - initial data (scalar, vector, matrix)
s1 - string with initial units ('m/s','ohm*m','kJ/cm^3' etc)
s2 - string with target units
output: x2 - converted data
when output is empty, result is printed in command window.
feel free to expand list of available units by changing 'units' variable, where:
1st column: unit symbol
2nd column: 'MLTQ' based dimensions
3rd column: conversion factor
Symbolic Math Toolbox is required.
Examples:
units(1,'kN/mm^2','MPa') -> 1 kN/mm^2 = 1000 MPa
units(5*50,'mA^2*ohm','mW') -> 250 mA^2*ohm = 0.25 mW
units([1 10 100],'Mega*eV','micro*erg') -> 1 Mega*eV = 1.60218 micro*erg
10 Mega*eV = 16.0218 micro*erg
100 Mega*eV = 160.218 micro*erg

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Updates

1.0.0.0

cover picture

1.0.0.0

new input combinations are possible:

units(s1,s2) equivalent to units(1,s1,s2)
units(x1,s1) defines s2 as closest possible si-unit: s1='km/hour' -> s2='m/s', s1='kN*km/s' -> s2='J', etc.
units(s1) equivalent to units(1,s1)

MATLAB Release Compatibility
Created with R2014b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Acknowledgements

Inspired by: units.m