Re: lug-bg: IE tcp timeout
- Subject: Re: lug-bg: IE tcp timeout
- From: stoev@xxxxxxxxxxxxxxxxx (Julian Stoev)
- Date: Mon, 10 Apr 2000 21:47:18 +0900
On Mon, Apr 10, 2000 at 02:04:25PM +0300, Bobi wrote:
|Ne trqbva da ima programa, koqto da raboti 10 min :)
|
|Na suvremenen computer za 5 min moga da ti uzravnq mreza ot 10000 tochki po
|metoda na nai-malkite kvadrati (ludo umnozenie na matrici)...
Vsyshtnost metodyt na naj-malkite kvadrati e dosta lesen primer. Matlab
na Sun go pravi za chasti ot sekundata. Az pochti ezednevno zabivam
mashinkata si (PIII 500MHz 128MB) sys simvolni smetki (diferencialni
uravnenia), a kogato rabotata opre do genetichni algoritmi, stava duma za
dni...
Byrz primer - faktorizirane na "nevinen" polinom:
pol:=x^288 + x^285 + x^282 - x^273 - x^270 - x^267 - x^249 - x^246 + x^240
+ x^237 + x^234 + x^231 - x^225 - x^222 - x^204 - x^201 + x^195 +
x^192 + x^189 + x^186 - x^180 - x^177 + x^171 + x^168 + x^165 - x^159
- 2*x^156 - x^153 + x^147 + x^144 + x^141 - x^135 - 2*x^132 - x^129 +
x^123 + x^120 + x^117 - x^111 - x^108 + x^102 + x^99 + x^96 + x^93 -
x^87 - x^84 - x^66 - x^63 + x^57 + x^54 + x^51 + x^48 - x^42 - x^39 -
x^21 - x^18 - x^15 + x^6 + x^3 + 1;
pp:=poly(pol,[x]);
time(factor(pp));
Tova niama da go dochakash nikoga. Programata e free - MuPAD (www.mupad.de)
--JS
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