Re: [ot]Re: Re-use the argument?
- From: Richard Heathfield <rjh@xxxxxxxxxxxxxxx>
- Date: Mon, 09 Jun 2008 08:18:50 +0000
pete said:
Richard Heathfield wrote:
Richard Tobin said:
<snip>
The key is to be clear.
No argument there - I'm just nit-hunting right now.
For example, consider
a function to determine kinetic energy given mass and speed:
You can't. You need the velocity, not the speed.
No; you need the speed.
Energy isn't a vector quantity.
Whoops! Okay, so "need" was a bit strong in this specific case. Velocity
would, however, be of more use, generally speaking. For example, with
velocity and mass you can calculate not just kinetic energy, but also
momentum.
--
Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999
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