vectors in polar coordinates
- To: mathgroup@smc.vnet.net
- Subject: [mg11763] vectors in polar coordinates
- From: "Michael Milirud" <michael@idirect.com>
- Date: Thu, 26 Mar 1998 03:09:32 -0500
- Organization: "TUCOWS Interactive Inc"
I'm really lost here. It seems there is almost NO support of simple
vectors in Mathematica v.3.0
If I want to add 2 vectors of which I have a polar (cylindrical)
representation I am forced to do something like
<< Calculus`VectorAnalysis`
SetCoordinates[Cylindrical]
a={100, -115*Pi/180, 0}
b={200, -30*Pi/180, 0}
A=CoordinatesToCartesian[a, Cylindrical] B=CoordinatesToCartesian[b,
Cylindrical] d=A+B
D=CoordinatesFromCartesian[d, Cylindrical]
and that is a HECK longer to do then by hand. There's got to be
something simplier like:
{100, -115*Pi/180, 0} + {200, -30*Pi/180, 0}
or something...
Also how do I find a magnitude of a vector. The Abs[] doesn't support
this. Sqrt[d[[1]]^2+d[[2]]^2+d[[3]]^2]
is simply hedious!!!
Please help cause I'm really lost ;(
Michael
P.S. If possible, please also send a direct email to
mmichael@idirect.com