Re: Getting used to Calc's Radian convention

[jay . p . belanger]

> > Calc's unit convention of revolution per minute (rpm)
> 
> > is derived from the angular speed and not from a
> 
> > frequency. One does not need to type the factor of `2
> 
> > pi' when calculating, for example, the
> 
> > circumferential velocity from the radius and some
> 
> > value in rpm. So far so good.
> 
> >
> 
> > But it has the slight aesthetic drawback that now the
> 
> > velocity turns out to be in units of radians.
> 
> >
> 
> > n <- 1 rpm
> 
> > r <- 1 m
> 
> > n r -> 2 pi rad m / min


> My thoughts are: What?!

He's referring to Calc (part of Emacs), which can work with units (such as 
meters, radians, etc.)

Calc doesn't "know" that the rad probably shouldn't be there; perhaps there 
could be a simple way of telling it.