Units[Natural]
ln
natural logarithmic function in the Natural Units environment
log
general logarithmic function in the Natural Units environment
log10
common logarithmic function in the Natural Units environment
log2
binary logarithmic function in the Natural Units environment
Calling Sequence
Parameters
Description
Examples
Compatibility
ln(expr)
log(expr)
log10(expr)
log2(expr)
log[b](expr)
logbexpr
expr
-
algebraic expression
b
algebraic expression, the base of the logarithm
In the Natural Units environment, the arguments for the logarithmic functions can be unit-free, or multiplied by a unit that is energy-equivalent to a rational power of the dimension length(base)/length. Examples of such units are watt/watt(base) (power ratio) or voltage/voltage(base) (voltage ratio).
By default, the unit of the object returned is the nepers.
For other properties, see the global function ln.
withUnitsNatural:
VR≔ln5.32voltsvoltsbase
VR≔1.671473303Np
PR≔ln5.32wattswattsbase
PR≔0.8357366515Np
dbls≔mapconvert,VR,PR,units,dB
dbls≔14.51823264dB,7.259116321dB
convertvoltsvoltsbase,dimensions,energy
lengthbaselength
convertwattswattsbase,dimensions,energy
lengthbase2length2
mapexp,dbls
5.319999998mbasem,2.306512518mbasem
The Units[Natural][log2] command was introduced in Maple 2021.
For more information on Maple 2021 changes, see Updates in Maple 2021.
See Also
Units
Units/logarithmic_gain
Units/Natural
Units/Natural/exp
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