Re: Re: Re: coordinate transformation
- To: mathgroup at smc.vnet.net
- Subject: [mg13373] Re: [mg13308] Re: [mg13169] Re: [mg13117] coordinate transformation
- From: David Withoff <withoff>
- Date: Mon, 20 Jul 1998 02:50:27 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Sean Ross wrote:
> Take any two cartesian vectors with one end at the origin and the other
> at some arbitrary point. We represent them by ordered triplets,
> {x1,y1,z1} and {x2,y2,z2}. Lets convert them into spherical
> coordinates: {Sqrt[x1^2+y1^2+z2^2],0,0} and
> {Sqrt[x2^2+y2^2+z2^2],0,0}.
Followed by:
> You ought to object at this point
YES!!!! Are you seriously suggesting that, for example,
CoordinatesFromCartesian[{1,1,1},Spherical] should return {Sqrt[3],0,0}
???
> I am only illustrating broad concepts, not telling
> you exactly how to write your programs, nor writing a textbook on the
> subject of vector analysis.
You don't need to write a textbook. Even a single specific example of
how a single specific function should behave would be helpful.
Dave Withoff
Wolfram Research