subexpressions (OT: math)

[Wildemar Wildenburger]

Gary Herron wrote:
>> The radian is defined as the ratio of an arc of circumfence of a circle 
>> to the radius of the circle and is therefore *dimensionless*. End of story.
>> http://en.wikipedia.org/wiki/Radian  and esp.
>> http://en.wikipedia.org/wiki/Radian#Dimensional_analysis
>>
>>   
>>     
>
> The arguments to sine and cosine must have an associated unit so you
> know whether to interpret sin(1.2) as sine of an angle measured in
> degrees or radians (or whatever else).
>   

Touché. :)

Yes, I think we can all agree on that.

/W