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5
votes
1answer
82 views

ListPolarPlot: 0 Degree at vertical axis

Is it possible to have ListPolarPlot start plotting at the vertical axis? By Default ListPolarPlot gives this result: ...
0
votes
1answer
128 views

Rotation matrix $\to$ quaternion

I found a very good link about quaternions in Mathematica , but I don't know how to create a quaternion from a rotation matrix. Can anyone help me, please? Update I need this: A rotation may be ...
2
votes
1answer
98 views

Randomly generated polymer with certain spatial density

For simplicity's sake, let the polymer's composing particle be integer 3-tuples (on 3D Cartesian grid), such that: Polymer-ness -- for all particle there is an directly adjacent neighbor. i.e in ...
0
votes
1answer
172 views

3D plot of a solid of revolution

I'm trying to rotate the area between the graphs of $y=3$ and $y=x^2$ around $y=1$. I'm not attempting to just find the area as that would just be ...
2
votes
1answer
89 views

how to distinguish clockwise from counterclockwise rotation

I need to distiguish the true rotation of a vector (time dependent, solution of a system of two coupled differential equation) respect a fixed vector. As showed in the follow,neither ...
1
vote
1answer
111 views

need help rotating an object about the z-axis using animation

This should be an easy question for anyone familiar with 3D animations. I have a 2D shape denoted by the equation ((x-1)^2+y^2) ((x+1)^2+y^2)==1 and I ...
0
votes
1answer
111 views

Revolving the area between two functions about an axis

I'm trying to graph the revolution of the area between two functions about an axis, but I'm new to Mathematica, and not sure how to proceed. My area is defined by ...
-2
votes
2answers
283 views

Problem with convert matlab function into mathematica version of euler angle

I've wrote a function that will extract euler angle from matrix according to Matlab's function in AeroSpace toolbox's dcm2angle package file. But not quite right. ...