csort, rsort - why???

RadovanOmorjan · ‎Aug 31, 2009

Could someone, please explain this to me. I really do not understand this behavior.

Regards,
Radovan

RadovanOmorjan · ‎Aug 31, 2009

I found the reason from the Mathcad help. It is due to the unstable heapsort procudure applied. Is there any chance to replace this procedure?

Regards,
Radovan

ValeryOchkov · ‎Aug 31, 2009

On 8/31/2009 8:11:35 AM, omorr wrote:
>Could someone, please explain
>this to me. I really do not
>understand this behavior.
>
>Regards,
>Radovan

Same in Mathcad 14.

Val
http://twt.mpei.ac.ru/ochkov/v_ochkov.htm

IRstuff · ‎Aug 31, 2009

On 8/31/2009 8:11:35 AM, omorr wrote:
>Could someone, please explain
>this to me. I really do not
>understand this behavior.
>
>Regards,
>Radovan

GIGO.

Procedurally, a bug, but since you've commanded it to sort pathological data, anything it outputs is mathematically correct, since the algorithm doesn't care about data in any other row or column, as the case may be.

Procedurally, if the algorithm is presented with pathological data, it should do nothing, but it attempts to sort and gets what it gets.

TTFN,
Eden