Go to navigation
It is currently Sun Dec 11, 2016 8:05 am

All times are UTC




Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Wed Aug 26, 2015 12:06 pm 
Offline

Joined: Fri Jul 04, 2014 11:06 pm
Posts: 73
Please help!!!
best way to explain this:-
how to tell what are the new co ordinates of a shape tjat has been rotated, by a certain angle about a certain point...
we are sitting CEM test if that's relevant.
we,ve looked at videos but all use tracing papers etc so no good.
thanks much in advance


Top
 Profile  
 
PostPosted: Thu Aug 27, 2015 8:16 am 
Offline

Joined: Thu Mar 17, 2011 12:58 pm
Posts: 92
The rule for a rotation by 90° about the origin is (x,y) to (-y,x)
The rule for a rotation by 180° about the origin is (x,y) to (-x, -y)
The rule for a rotation by 270° about the origin is (x,y) to (y, -x)

Hope it helps!!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
CALL 020 8204 5060
   
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2016