A

**rotation**by 270° about the origin can be seen in the picture below in which A is rotated to its image A'. The general rule for a**rotation**by 270° about the origin is (A,B) (B, -A) http...1 Answers · Science & Mathematics · 28/03/2012

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**rotation**s about OX & OY. The 3D matrix for this**rotation**about ...2 Answers · Science & Mathematics · 30/05/2012

...it would be the earth, the rocket and the atmosphere. Assumption: The

**rotation**of the earth around the sun is neglected for our system. the 8...3 Answers · Science & Mathematics · 12/04/2007

... aware of, respond or react to the Earth's

**rotation**. All gyros have the property of "rigidity in... IRSing, detect the Earth's**rotation**during alignment on the ground.7 Answers · Cars & Transportation · 08/12/2009

...at center (0.5 + radius) 2 | 2.5 <----- Highest point after 1/2

**rotation**. 3 | 1.5 <----- 270deg**rotation**after 3sec; tip is on way back down...4 Answers · Science & Mathematics · 11/06/2013

The speed of this

**rotation**is constantt, thus Earth's**rotation**doesn't make the tectonic ...6 Answers · Science & Mathematics · 31/07/2008

... Lindbergh and Sam Miller ranked playoff rotations , you may be interested to listen. http://www.baseballprospectus...

2 Answers · Sports · 02/10/2013

... 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

...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

The equator refers to a plane perpendicular to the axis of physical

**rotation**of the earth and thus has nothing to do with the magnetic poles...4 Answers · Science & Mathematics · 18/01/2010