## Search found 5 matches

Thu Mar 22, 2012 8:34 am UTC
Forum: Mathematics
Topic: Vector transformations
Replies: 11
Views: 1875

### Re: Vector transformations

Hi, Thanks for the replies. Specifically, I'm trying to find the euler angles which describe a translation between orthogonal coordinate systems. My process was/is to somehow find the rotation matrix, then calculate the euler angles from that. I think my first mistake was to describe the coordinate ...
Tue Mar 20, 2012 7:12 am UTC
Forum: Mathematics
Topic: Vector transformations
Replies: 11
Views: 1875

### Vector transformations

Dear all, I have a linear algebra problem, but seem to have forgotten everything I learnt in 1st year maths. Please help! How do I find the 3x3 matrix (let's call it M) which transforms one 3x1 vector (A) to another 3x1 vector (B)? i.e. B(3x1) = M(3x3).A(3x1) I guess this can be solved fairly easily...
Sat Apr 28, 2007 5:47 am UTC
Topic: 0253: "Highway Engineer Pranks"
Replies: 112
Views: 44840
I was in Valladolid, Spain where they had this intersection for single-lane roads (i have no idea why): http://i97.photobucket.com/albums/l222/hugh50935/intersection.jpg There was slow traffic so people queued into the space between the lights, thus cutting off the traffic in both roads. Needless to...
Tue Oct 24, 2006 2:10 pm UTC
Forum: Logic Puzzles
Topic: Plane on a conveyor belt
Replies: 143
Views: 64302
Grip isn't needed for a plane to take off at all. Seaplanes work, along with those antarctic ones with skids.

A conventional wheel-driven car on a conveyor belt would be a more interesting problem?
Sun Oct 22, 2006 12:33 am UTC
Forum: General
Topic: Halloween (and Othertime) Costume Ideas
Replies: 262
Views: 48658
Paint your face black, wear black, and dance around to no music as an iPod commercial? If I could find a stick-on handlebar moustache i'd go as a 1920's cat-burglar. It'd also be fun to wear a black sheet & mask and be the no-face-monster from Spirited Away. If i had enough foam + fabric i'd go ...