• ## ed762

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• ### Recent Forum Posts

#### Re: Permutations

Is the only difference that three have to be numbers and three have to be letters? Because your calculation "10*9*8*26*25*24" suggests that

joypav Today, 01:02

#### Permutations

Hi,

I'm not sure if this is the correct forum so if I need to post elsewhere please let me know.

I'm having trouble with

Mackenzie3 Yesterday, 23:13

#### Re: Vector calculations - Geogebra

Good!

There doesn't seem to be a command for a projection, but

(u*v)/v^2 * v
works for me.
It shows up as $w=\frac{u\,v}{v^2}v$.

Klaas van Aarsen Yesterday, 16:36

#### Re: Vector calculations - Geogebra

Ahh ok! Now I get only $\frac{5\pi}{6}$.

Now I got everything but I got stuck at the projection. Is there

mathmari Yesterday, 16:27

#### Re: Vector calculations - Geogebra

Hey [unm]mathmari[/unm]!!

Shouldn't we have 1 angle?
The angle between two vectors is usually defined as the unique shortest angle between

Klaas van Aarsen Yesterday, 15:58