Re: Vector operations,
- To: mathgroup at smc.vnet.net
- Subject: [mg70012] Re: Vector operations,
- From: "ben" <benjamin.friedrich at gmail.com>
- Date: Sat, 30 Sep 2006 05:12:42 -0400 (EDT)
- References: <efitqn$lu4$1@smc.vnet.net>
What about
{{1/2, 1/2}, {1, 0}, {0, 1}, {0, 0}} . {{Cos[\[Alpha]], Sin[\[Alpha]]},
{-Sin[\[Alpha]], Cos[\[Alpha]]}}
?
Ben
mickey schrieb:
> Hi,
>
> I have a list of vectors such as
>
> {{1/2, 1/2}, {1, 0}, {0, 1}, {0, 0}}
>
> I want to rotate them all by the same angle. Right now, what I do is
> multiply each by RotationMatrix2D[t] and iterate over the list. Is there
> a more efficient way to do this?
>
> Thanks,
> -M