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[37] | 1 | function r = x(q) |
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| 2 | % X Extracts the x component of the vector part of a quaternion. |
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| 3 | |
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| 4 | % Copyright © 2005 Stephen J. Sangwine and Nicolas Le Bihan. |
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| 5 | % See the file : Copyright.m for further details. |
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| 6 | |
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| 7 | % error(nargchk(1, 1, nargin)), error(nargoutchk(0, 1, nargout)) |
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| 8 | |
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| 9 | % This function is written in terms of its private counterpart |
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| 10 | % so that the underlying representation of a quaternion is a |
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| 11 | % private aspect of the class. |
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| 12 | |
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| 13 | r = exe(q); |
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