Group Abstract Group Abstract

Message Boards Message Boards

0
|
2.5K Views
|
2 Replies
|
1 Total Like
View groups...
Share
Share this post:
GROUPS:

If someone could tell me how on mathematica you do this thanks?

Anonymous User
Anonymous User
Posted 11 years ago
POSTED BY: Anonymous User
2 Replies

Now stuff has become so easy ...

In[3]:= Sin[VectorAngle[{2, -1, 1}, {3, 2, 1}]]
Out[3]= Sqrt[59/21]/2

VectorAngle and the formula is of course

In[4]:= Sin[ArcCos[Dot[{2, -1, 1}, {3, 2, 1}]/(Norm[{2, -1, 1}] Norm[{3, 2, 1}])]]
Out[4]= Sqrt[59/21]/2

as the help spells it out.

POSTED BY: Udo Krause

Calculate the cross product with Cross and go from there.

http://en.wikipedia.org/wiki/Cross_product

POSTED BY: Frank Kampas
Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Reply Preview
Attachments
Remove
or Discard