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reference:ft_scalingfactor [2018/08/23 14:43] (current)
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 +=====  FT_SCALINGFACTOR =====
 +
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_scalingfactor"​.
 +
 +<​html><​pre>​
 +  <a href=/​reference/​ft_scalingfactor><​font color=green>​FT_SCALINGFACTOR</​font></​a>​ determines the scaling factor from old to new units, i.e. it
 +  returns a number with which the data in the old units needs to be multiplied
 +  to get it expressed in the new units. ​
 + 
 +  Use as
 +    factor = ft_scalingfactor(old,​ new)
 +  where old and new are strings that specify the units.
 + 
 +  For example
 +    ft_scalingfactor('​m',​ '​cm'​) ​         % returns 100
 +    ft_scalingfactor('​V',​ '​uV'​) ​         % returns 1000
 +    ft_scalingfactor('​T/​cm',​ '​fT/​m'​) ​    % returns 10^15 divided by 10^-2, which is 10^17
 +    ft_scalingfactor('​cm^2',​ '​mm^2'​) ​    % returns 100
 +    ft_scalingfactor('​1/​ms',​ '​Hz'​) ​      % returns 1000
 + 
 +  The following fundamental units are supported
 +    metre       ​m ​  ​length ​ l (a lowercase L), x, r L
 +    kilogram ​   kg  mass    m   M
 +    second ​     s   ​time ​   t   T
 +    ampere ​     A   ​electric current ​   I (an uppercase i)  I
 +    kelvin ​     K   ​thermodynamic temperature ​  ​T ​  #
 +    mole        mol amount of substance n   N
 +    candela ​    ​cd ​ luminous intensity ​ Iv (an uppercase i with lowercase non-italicized v subscript) ​  J
 + 
 +  The following derived units are supported
 +    hertz       ​Hz ​ frequency ​  1/s T-1
 +    radian ​     rad angle   m/m dimensionless
 +    steradian ​  ​sr ​ solid angle m2/m2   ​dimensionless
 +    newton ​     N   ​force,​ weight ​  ​kg#​m/​s2 M#L#T-2
 +    pascal ​     Pa  pressure, stress ​   N/m2    M#L-1#T-2
 +    joule       ​J ​  ​energy,​ work, heat  N#m = C#V = W#s M#L2#T-2
 +    coulomb ​    ​C ​  ​electric charge or quantity of electricity ​ s#A T#I
 +    volt        V   ​voltage,​ electrical potential difference, electromotive force   W/A = J/C   ​M#​L2#​T-3#​I-1
 +    farad       ​F ​  ​electric capacitance ​   C/V M-1#​L-2#​T4#​I2
 +    siemens ​    ​S ​  ​electrical conductance ​ 1/# = A/V   ​M-1#​L-2#​T3#​I2
 +    weber       ​Wb ​ magnetic flux   J/A M#​L2#​T-2#​I-1
 +    tesla       ​T ​  ​magnetic field strength V#s/m2 = Wb/m2 = N/​(A#​m) ​   M#T-2#I-1
 +    henry       ​H ​  ​inductance ​ V#s/A = Wb/A    M#​L2#​T-2#​I-2
 +    lumen       ​lm ​ luminous flux   ​cd#​sr ​  J
 +    lux         ​lx ​ illuminance lm/m2   L-2#J
 +    becquerel ​  ​Bq ​ radioactivity (decays per unit time)    1/s T-1
 +    gray        Gy  absorbed dose (of ionizing radiation) ​  ​J/​kg ​   L2#T-2
 +    sievert ​    ​Sv ​ equivalent dose (of ionizing radiation) J/kg    L2#T-2
 +    katal       kat catalytic activity ​ mol/s   T-1#N
 + 
 +  The following alternative units are supported
 +    inch        inch  length
 +    feet        feet  length
 +    gauss       gauss magnetic field strength
 + 
 +  The following derived units are not supported due to potential confusion
 +  between their ascii character representation
 +    ohm             # ​  ​electric resistance, impedance, reactance ​  V/A M#​L2#​T-3#​I-2
 +    watt            W   ​power,​ radiant flux J/s = V#A   ​M#​L2#​T-3
 +    degree Celsius ?​C temperature relative to 273.15 K K ?
 + 
 +  See also http://​en.wikipedia.org/​wiki/​International_System_of_Units
 +</​pre></​html>​