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Talk:Quaternion type: Difference between revisions
→What simple properties should become part of the task?: What about rotations?
m (→What simple properties should become part of the task?: With '''compl'''[ex] numbers such a test could be to check that exp(πi)=-1. Is there an equivalent for Quaternions?) |
(→What simple properties should become part of the task?: What about rotations?) |
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This is just a personal preference, in preference to a simple 1+1=2 test I prefer - if possible - tests that are a little but more extensive.
For example for the [[Rational Arithmetic]] test:<blockquote> Use the new type '''frac'''[tion] to find all perfect numbers less then 2<sup>19</sup> by summing the reciprocal of the factors. </blockquote>
Basically this test is nice because runs the gauntlet of multiple additions and divisions to come up with a known result.
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[[User:NevilleDNZ|NevilleDNZ]] 05:16, 4 August 2010 (UTC)
: As I understand it, unit quaternions are used to model rotations. Perhaps using them to model some kind of rotation would do as a “demonstration” question? –[[User:Dkf|Donal Fellows]] 07:20, 4 August 2010 (UTC)
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