🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: uk.education.maths
Article #151

Re: A point and its position vector, your comment please

#151
From: Oliver Low
Date: Sat, 28 Mar 1998 00:00
24 lines
1700 bytes
In article <ma-2703981552050001@mac89.maths.uwa.edu.au>, ma
<ma@maths.uwa.edu.au> writes
>Assume that a coordinate system of xyz-axes has been chosen. Then both a
>point P and its position vector \uparrow(OP) are represented by the same
>triple (a,b,c). Hence we are allowed to write P=(a,b,c)=\uparrow(OP), i.e.
>P=\uparrow(OP). With this simple notation, we have the simple formula:
>\uparrow(AB)=B-A.
>
>Question: DO you accept or reject the notation P=\uparrow(OP)?
>I DO need your public opinion URGENTLY. Please cast you vote, one way or
<snip>
>Dr. MA, Math Dept, UWA
>
>--------------------------------------------------------------------
>

For me, no. Not the same. The point p\in R^3 is completely and utterly
different from the vector v\in V_3(R), a vector space. 
:)
-- 
Oliver Low
HTTP://www.netmatrix.demon.co.uk
N.B. to reply, remove the obvious SPAM bit from the address.
Technical Details
Message-ID: <hhoPAmAF7GH1EwTy@netmatrix.demon.co.uk>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <ma-2703981552050001@mac89.maths.uwa.edu.au>

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: f458d,333e3e48a480a9d8
X-Google-Attributes: gidf458d,public
X-Google-Thread: 103aae,333e3e48a480a9d8
X-Google-Attributes: gid103aae,public
X-Google-Thread: 1065a2,333e3e48a480a9d8
X-Google-Attributes: gid1065a2,public
From: Oliver Low <ojl@netmatrix.demon.co.uk>
Subject: Re: A point and its position vector, your comment please
Date: 1998/03/28
Message-ID: <hhoPAmAF7GH1EwTy@netmatrix.demon.co.uk>
X-Deja-AN: 338483343
X-NNTP-Posting-Host: netmatrix.demon.co.uk [194.222.156.118]
References: <ma-2703981552050001@mac89.maths.uwa.edu.au>
Organization: Net Matrix
MIME-Version: 1.0
Reply-To: Oliver Low <ojl@_SPICED_HAM_netmatrix.demon.co.uk>
Newsgroups: uk.education.maths,k12.education.math,fj.education.math