C valoda -> masīvi

[zhurcina]

Sveiki!!
Būšu ļoti pateicīga, ja kāds ieteiks ideju kā sareizināt divas matricas, ja vienai ir izmēri AxB un otrai B???

[bubu]

Kā var izmērs būt vienkārši B?
Varbūt domāji 1xB, vai Bx1? Ja tā, tad skaties jebkurā matemātikas grāmatā par matricu pamatiem. Tur noteikti būs forumula un piemēri kā reizināt matricas. Skat, pat Wikipēdijā ir vesels raksts par to.

[Žurka]

visādi for cikli turpu šurpu

p.s. tavs niks nekam neder

[zhurcina]

ok, paldies, sapratu savu kluudu!!

[Žurka]

zhurcina rakstīja:ok, paldies, sapratu savu kluudu!!

tava pirmā kļūda - šis posts xD

man sanāca 4 For cikli

Kods:

for horizontaali
{
  for vertikaali
  {
    for sasummee vertikaali [a matrica]
    {}
    +
    for sasummee horizontaali [b matrica vai otraadi]
    {}
  }
}

[bubu]

Par daudz tev sanāca. Ar trim cikliem var. Pēc formulas wikipēdijā: http://upload.wikimedia.org/math/6/f/1/6...4b65e5.png viens cikls pa i, otrs pa j, trešais pa r.

[Žurka]

bubu rakstīja:Par daudz tev sanāca. Ar trim cikliem var. Pēc formulas wikipēdijā: http://upload.wikimedia.org/math/6/f/1/6...4b65e5.png viens cikls pa i, otrs pa j, trešais pa r.

man slinkums domāt ko tajā formulā rakstīts

kas ir r?

[bubu]

Lielo sigma simbolu neesi nekad redzējis vai?
http://en.wikipedia.org/wiki/Summation#C...a_notation
http://en.wikipedia.org/wiki/Sigma_(lett...athematics

[Žurka]

bubu rakstīja:Lielo sigma simbolu neesi nekad redzējis vai?
http://en.wikipedia.org/wiki/Summation#C...a_notation
http://en.wikipedia.org/wiki/Sigma_(lett...athematics

es prasiiju kas ir RRRRRRRRRRRRRRRRRRRRRR nevis taa summas ziime

[bubu]

Nesaprotu, ko tu nesaproti. Formulā r ir ļoti skaidri pateikts, ko tas dara. Zem lielās sigmas paskaties.

[krabis]

es atljaushos piebilst, ka ja paskataas visu rakstu tad ir pat ljoti skaidrs kas ir n, bet ja skataas tikai to bildiiti - nu cilveekam kas iisti nepaarzin matricu reizinaashanu un tieshi taapeec te prasa padomu var pirmajaa briidii nepielekt, ne jau kas ir r - bet kas ir n. Man prastiitos ka blakus pieliek ka pirmaa matrica ir i*n un otraa n*j

[FrankJScott]

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[FrankJScott]

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[FrankJScott]

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[FrankJScott]

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