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#1 2012-10-24 20:48:05
- Harold
- Guest
Rotation in graph
Suppose I have a triangle with coordinates (1,1),(3,1),(2,2) and I want to rotate them 80 degrees so that they stay at same distance from origin,what will be the rotated triangle's coordinates?how do I find them?
#2 2012-10-24 20:54:52
- bob bundy
- Moderator
Offline
Re: Rotation in graph
hi Harold,
Can you do matrix multiplication?
The matrix
multiplied by your coordinates written as vectors:
will do the trick.
MathsIsFun has a matrix calculator at
http://www.mathsisfun.com/algebra/matri … lator.html
Choose option AB.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#3 2012-10-24 21:08:27
- Harold
- Guest
Re: Rotation in graph
Thank you,but i can do matrix multiplication and i have got my answer.