<div><br></div>Hi Tod,<div><br></div><div>Would you consider bundling the quaternion dtype with your package. </div><div>I think everybody wins: your package would become stronger and</div><div>Martin's dtype would become easily available. </div>
<div>Thanks</div><div>Val<br><br><div class="gmail_quote">On Sat, May 5, 2012 at 6:27 AM, Tom Aldcroft <span dir="ltr"><<a href="mailto:aldcroft@head.cfa.harvard.edu" target="_blank">aldcroft@head.cfa.harvard.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Fri, May 4, 2012 at 11:44 PM, Ilan Schnell <<a href="mailto:ischnell@enthought.com">ischnell@enthought.com</a>> wrote:<br>
> Hi Chuck,<br>
><br>
> thanks for the prompt reply. I as curious because because<br>
> someone was interested in adding <a href="http://pypi.python.org/pypi/Quaternion" target="_blank">http://pypi.python.org/pypi/Quaternion</a><br>
> to EPD, but Martin and Mark's implementation of quaternions<br>
> looks much better.<br>
<br>
</div>Hi -<br>
<br>
I'm a co-author of the above mentioned Quaternion package. I agree<br>
the numpy_quaternion version would be better, but if there is no<br>
expectation that it will move forward I can offer to improve our<br>
Quaternion. A few months ago I played around with making it accept<br>
arbitrary array inputs (with similar shape of course) to essentially<br>
vectorize the transformations. We never got around to putting this in<br>
a release because of a perceived lack of interest / priorities... If<br>
this would be useful then let me know.<br>
<br>
Best,<br>
Tom<br>
<div class="HOEnZb"><div class="h5"><br>
> - Ilan<br>
><br>
><br>
> On Fri, May 4, 2012 at 5:36 PM, Charles R Harris<br>
> <<a href="mailto:charlesr.harris@gmail.com">charlesr.harris@gmail.com</a>> wrote:<br>
>> Hi Ilan<br>
>><br>
>> On Fri, May 4, 2012 at 3:38 PM, Ilan Schnell <<a href="mailto:ischnell@enthought.com">ischnell@enthought.com</a>> wrote:<br>
>>><br>
>>> Hello everyone,<br>
>>><br>
>>> what is the plan for Quaternion data types in numpy?<br>
>>> I saw that during last years SciPy spring<br>
>>> <a href="https://github.com/martinling/numpy_quaternion" target="_blank">https://github.com/martinling/numpy_quaternion</a><br>
>>> was started, but not updated or released since then.<br>
>>><br>
>><br>
>> That was Martin Ling, link and thread here . I'm not sure what happened with<br>
>> this but I suspect we are waiting for extension types to be fixed up in<br>
>> master. Mark had some thoughts along those lines.<br>
>><br>
>> Chuck<br>
>><br>
>><br>
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