[SI-LIST] Re: Units Conversion Question
- From: "Doug McKean" <dmckean@xxxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 13 Aug 2001 15:33:31 -0700
Off hand I'd say your colleague is correct.
The basis of your argument rests on dimensional analysis.
In other words, you're saying something is wrong with the
dimensions of the result after some factor is eliminated.
Mathematically, logarithms are in fact dimensionless. There
are no "voltage", "current", or "resistance" logarithms. The
ratio eliminates the dimensions (whatever they may be) before
the logarithm is performed and the result of the logarithm is
dimensionless. You have simply numbers.
- Doug McKean
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