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related to: rotation

1. how to calculate 4 points of a rectangle after rotation ?

We assume rotation in the plane of the rectangle. For rotation counterclockwise about the origin through...y] column vector to get the rotated point [x'; y']. If the rotation is around some other point, (h, k), it is convenient to subtract this origin...

2 Answers · Science & Mathematics · 26/03/2012

2. 2 by 2 matrix transformations - how do you find the scale factor of enlargement and angle of rotation ?

A rotation transformation has a matrix: (cosx -sinx) (sinx cosx) and a ...1 Since x is supposed to be an angle of rotation , -pi < x <= pi. We get one solution...

1 Answers · Science & Mathematics · 16/01/2009

3. 3d rotations to form a mirror reflection?

Actually, it is not a rotation about the z-axis. It's a reflection in the y-z plane...that person IS in a position that is a 180 degree rotation about the z-axis. So when we look in a mirror, where the...

2 Answers · Science & Mathematics · 22/09/2011

4. rotation clockwise and counterclockwise?

Complex numbers - Translations, Scales and Rotations z = x+iy = r cosθ + i r sinθ = r cisθ = r e(iθ) (a+ib)+z ...

1 Answers · Science & Mathematics · 18/04/2013

5. Tire rotation every 200 miles?

"Tire rotation " refers to moving the tires around on your car in... are assuming. Some dealers provide free lifetime rotation , but at others you must pay. That's why doing that every...

3 Answers · Science & Mathematics · 24/10/2017

6. How do you combine rotations in geometry into a single rotation ?

Rotations (as long as they are centred on the same point -- usually the origin...get very complicated. We normally go through reflections (a rotation is a double reflection through two lines crossing at the ...

1 Answers · Science & Mathematics · 11/04/2012

7. How do you do math rotations ?

Unless otherwise directed, rotations are always counter-clockwise. So you just turn the paper pivoting...

2 Answers · Science & Mathematics · 14/12/2006

8. Help me with rotation of axes? 9x^2-24xy+111y^2+8x+6y+15=0?

Rotation would not help, since your equation is not satisfied for any point...so the domain of the given function is ∅. BTW, the angle of rotation of the coordinate system for eliminating (-24xy) term is α=atan[√(337...

2 Answers · Science & Mathematics · 17/08/2009

9. mathematical translation formulas?

rotation is the rounding of a shape transltions im not to sure what that is reflection is the mirror image of the shape

2 Answers · Science & Mathematics · 03/07/2008

10. Gear Ratios- Rotations ?

... passed by the meeting point on the small gear (by definition of one rotation ). Since there is no slippage (because these are meshing...

1 Answers · Science & Mathematics · 27/06/2008