sorting complex numbers

[Ninetrees]

After today's post about complex numbers, I looked in M' Help, and did not see complex numbers treated in Help under sort().

My "license" has expired and I can't test anything...

Rich
http://www.downeastengineering.com/

[SteenGroðe]

On 12/19/2009 8:35:17 AM, woodwise wrote:
>After today's post about
>complex numbers, I looked in
>M' Help, and did not see
>complex numbers treated in
>Help under sort().
>

How would you expect to sort complex numbers?


Steen Gro�e

[Ninetrees]

>How would you expect to sort complex numbers?

I don't 😉 My comment was just about what I expected to find in M' Help. I think that some nice discussion regarding the sorting of complex numbers is taking place in another thread, though. I think that PTC might benefit from looking at the discussion.

Rich
http://www.downeastengineering.com/

[Ninetrees]

>If you search for Sorting >Arrays, you'll see a >note about complex numbers.
Thanks. That makes some sense, I suppose, as the comment is relevant to sort order. Then will Help also address comparisons of complex numbers in relevant sections for Boolean tests and so on?

>The Beta test licenses were
>set to expire about December 15 as I recall,
>so that no one uses out of date software.

Easily remedied - just make up-to-date betas available 😉

Rich
http://www.downeastengineering.com/

[StuartBruff]

On 12/22/2009 7:35:35 AM, woodwise wrote:
>>If you search for Sorting >Arrays, you'll see a note about complex numbers. ... imaginary part is ignored.
== Thanks. That makes some sense, I suppose, as the comment is relevant to sort order. Then will Help also address comparisons of complex numbers in relevant sections for Boolean tests and so on?

I'd like to see the sort amended to include the imaginary part.

In addition, I would prefer a stable sort by default, such as mergesort, and even the ability for the user to give an ordering function for the sort.

See worksheet http://collab.mathsoft.com/upload/demo%20-%20complex%20sort%2001.mcd

(original thread = http://collab.mathsoft.com/read?131728,11 )

>>The Beta test licenses were set to expire about December 15 as I recall, so that no one uses out of date software.
== Easily remedied - just make up-to-date betas available 😉

Would that make it a gamma release?

uttSra