network profile
| bio | website | |
|---|---|---|
| location | Chemnitz, Germany | |
| age | 26 | |
| visits | member for | 2 years |
| seen | May 14 at 15:05 | |
| stats | profile views | 153 |
You can run, but you cannot glide!
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Sep 13 |
answered | Jacobian matrix of the Rodrigues' formula (exponential map) |
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Sep 7 |
awarded | Autobiographer |
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Sep 4 |
revised |
Finding the intersection point of many lines in 3D (point closest to all lines) Ported to latex for a more math appropriate style |
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Sep 4 |
suggested | suggested edit on Finding the intersection point of many lines in 3D (point closest to all lines) |
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Sep 4 |
awarded | Commentator |
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Sep 4 |
comment |
Finding the intersection point of many lines in 3D (point closest to all lines) +1 I tried to work on the distance equation and derive it, but I completely forgot about Lagrange identity. Perfectly simple now. |
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Sep 4 |
comment |
Finding the intersection point of many lines in 3D (point closest to all lines) Are you sure your computation of the distance is correct? The dot product computes the cos of the angle, whose sin we want, therefore we need the cross product (or rather it's norm) instead of the dot product. |
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Sep 3 |
comment |
Why composite transformations are multiplied to the right side? @xEnOn Just to clarify, your example was badly-chosen, as OpenGL uses column vectors. But maybe you know this yourself and it was just a thought experiment. |
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Sep 2 |
answered | Orthogonal matrix over cross product |
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Sep 1 |
comment |
How to calculate the x/y coordinate of F in this diagram (geometry) @Emperorlou If it helped in some way up-voting is appreciated (or maybe even accepting, as it's exactly the solution you came up with, in a format more appropriate to math.stackexchange). |
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Sep 1 |
revised |
How to calculate the x/y coordinate of F in this diagram (geometry) edited body |
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Sep 1 |
comment |
How to calculate the x/y coordinate of F in this diagram (geometry) This formula is not more exact than mine, it is exactly mine, transformed from vector algebra into programming (guess how dot and $\cdot$ and len2 and $\|\cdot\|^2$ are related to each other?). But I have to admit I had a little error in my solution so you might not have seen the similarity at first (corrected it already). Even if you searched for a programming solution, it is not really hard to transform vector algebra into programming, especially when you already have functions for the dot product and the vector norm and as we're on math.se, your answer is not really neccessary. |
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Aug 31 |
revised |
How to calculate the x/y coordinate of F in this diagram (geometry) edited body |
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Aug 31 |
answered | How to calculate the x/y coordinate of F in this diagram (geometry) |
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Aug 29 |
revised |
Quaternion for an object that to point in a direction deleted 265 characters in body |
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Aug 29 |
revised |
Quaternion for an object that to point in a direction added 265 characters in body |
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Aug 29 |
answered | Quaternion for an object that to point in a direction |
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Aug 25 |
comment |
The Euclidean norm ||r|| of a rotation @seven_swodniw up-voting is always appreciated. |
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Aug 25 |
answered | The Euclidean norm ||r|| of a rotation |
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Aug 22 |
comment |
Rotate Quaternion A by 180 degrees @ina So was it of any help? If yes, up-voting (and maybe accepting) would be appreciated. |
