# Yahoo Web Search

1. ##### Ad
related to: rotation
1. ### let T1 be the linear transformation corresponding to a rotation by an angle fo theta(1) about the x-axis in?

The standard rotation in xy plane is given by the matrix { {cosθ,−sinθ}, {sinθ,cosθ...from the +z side of the origin. The same convention is applied to rotations about OX & OY. The 3D matrix for this rotation about ...

2 Answers · Science & Mathematics · 30/05/2012

2. ### Derive the rotation matrix R that represents the rotation about a line by an angle A?

... can be tackled by by calculating the product of 5 separate rotation matrices based on angles. Two to align one axis with...

1 Answers · Science & Mathematics · 25/01/2014

3. ### Determine the determine angle of rotation if a triangle is reflected in the mirror lines y=2x+4and y=-1/2x-5?

...a + b = π b = π – π/2 – a b = π/2 – a b is half of the angle of rotation due to the reflection about the first line so the full angle of rotation is...

1 Answers · Science & Mathematics · 04/03/2011

4. ### let v=[3,2]. Find the rotation of v by the angle 60 degrees counterclockwise.?

You can use a rotation matrix and multiply. Rotation by an angle t is represented...

2 Answers · Science & Mathematics · 06/03/2011

5. ### How many rotations in a mile. I have an Elliptical machine that counts in rotations not miles. Thanks?

How big is the wheel for the rotation ? The circumference of a circle is 2*pi*r. If the wheel... if the wheel's radius is 1 foot, then it would take 840 rotations to reach 1 mile.

3 Answers · Science & Mathematics · 14/02/2008

6. ### what is the order of symmetrical rotation of a square?

The order of symmetrical rotation of a square is 4. How many different angles, between 0 and 360...

1 Answers · Science & Mathematics · 31/01/2010

7. ### what does: center of rotation mean- (in mathematics)??

...different points move with different velocities. The center of rotation is the point that has zero velocity. This point may be a permanent...

2 Answers · Science & Mathematics · 09/01/2008

8. ### Find the image of a point (x,y) under a rotation by an angle (theta) about (a,b) counterclockwise?

...y-B) sinΘ, (x-a) sinΘ + (y-b) cos Θ) ) The rotation matrix (see source) for rotation by angle Θ about the origin is cosΘ...

1 Answers · Science & Mathematics · 16/01/2014

9. ### What's the logic behind the matrix of rotation ? Why is the first column sin(theta) cos(theta) and the second c?

... should be [cos(theta); sin (theta)]. In any case, look at what a rotation by angle theta does to the unit vectors. What vector is...

1 Answers · Science & Mathematics · 09/02/2009

10. ### identify which rotations and reflections the following matrices correspond to, and determine the relevant angl?

... if yet its hard for u to understan then remmember this formula the rotation matrix is (cosx -sinx) (sinx -cosx) now find the x for ...

3 Answers · Science & Mathematics · 05/03/2012

1. Try asking your question on Yahoo Answers