Recent content by alaam2005

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    Find point coordinate on 3D circle knowing three points

    Thanks for your help chiro, I managed to solve the issue and got %100 results. I used the three eqns 1.2.3 and because of the squared terms, I used fsolve in MATLAB to solve it for different points in a loop. Thanks
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    Find point coordinate on 3D circle knowing three points

    Yes chiro, the dot means dot product and I added meaning of it to my previous reply, thanks for reminding about it. I have to disagree with you concerning the order in the dot product cause at end it will equals zero. So It's order will not affect the result. Concerning the equations, you...
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    Find point coordinate on 3D circle knowing three points

    Thanks for fast response chiro After I posted this I searched this forum for related issues and got some answers which is close to your answer. However, when I apply it I don't get feasible results.Assuming P4 as the point to find, similar to plane eqn you mention it, I used, a norm vector as...
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    Find point coordinate on 3D circle knowing three points

    I would like to find a 3D coordinate of a point (X) on a circle, knowing two points on the circle (P1,P2) which represent the circle diameter and another point (P3) NOT on the circle but on its plane. Also known the length of the line from P2 to X, for example d. Another thing that may help, the...
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    How Do You Calculate the Moment of Inertia for Displaced Sheets?

    Homework Statement Four sheets are displaced by d from the center and they are equal and have w by h dimensions with a mass m. It is required to find the moment of inertia around the axes x and z as shown in the figure attached. Homework Equations I=(mh^2/3)+(mw^2/12) The Attempt at...
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