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Fix broken link #4762

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4 changes: 2 additions & 2 deletions Modelica/Mechanics/MultiBody/Frames/Quaternions/from_T.mo
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Expand Up @@ -14,7 +14,7 @@ protected
algorithm
/*
This is an optimized version of the quaternion conversion based on
this paper: https://d3cw3dd2w32x2b.cloudfront.net/wp-content/uploads/2015/01/matrix-to-quat.pdf
this paper: https://github.com/ScottFielder/MathLibraryOriginal/blob/master/Literature/matrix-to-quat.pdf
*/
if T[3, 3] < 0 then
if T[1, 1] > T[2, 2] then
Expand Down Expand Up @@ -74,7 +74,7 @@ package.
<ul>
<li>January 2021 by Jakub Tobolar<br>
reimplemented for more efficient and numerically stable algorithm according to
<a href=\"https://d3cw3dd2w32x2b.cloudfront.net/wp-content/uploads/2015/01/matrix-to-quat.pdf\">https://d3cw3dd2w32x2b.cloudfront.net/wp-content/uploads/2015/01/matrix-to-quat.pdf</a>.
<a href=\"https://github.com/ScottFielder/MathLibraryOriginal/blob/master/Literature/matrix-to-quat.pdf\">https://github.com/ScottFielder/MathLibraryOriginal/blob/master/Literature/matrix-to-quat.pdf</a>.
It compares only one particular diagonal element with another to
select one of the four code parts. Then, the selected code delivers
four components which are close to the desired quaternion,
Expand Down