qualcuno riesce ad aiutarmi? pagina=5

Question

Matrice $5 x 5$ kk) Inizializzare una matrice di interi A 5x5 ll) Ricavare una matrice B moltiplicando la matrice di interi A per uno scalare K=4+$ pagina $        mm) Calcolare la somma di tutti gli elementi di B nn) Calcolare la somma di tutti gli elementi di ciascuna riga di A oo) Calcolare la somma di tutti gli elementi di ciascuna colonna di A pp) Calcolare la somma di tutti gli elementi di ciascuna riga di B qq) Calcolare la somma di tutti gli elementi di ciascuna colonna di B rr) Calcolare la differenza tra le somme di ciascuna riga di A con quelle di ciascuna riga di B ss) Calcolare la differenza tra le somme di ciascuna colonna di A con quelle di ciascuna colonna di B [attach]43355[/attach]

exProf · Accepted Answer

kk) http://www.wolframalpha.com/input?i=table%5BRandomInteger%5B%7B-5%2C5%7D%5D%2C%7Bx%2C0%2C4%7D%2C%7By%2C0%2C4%7D%5D
http://www.wolframalpha.com/input?i=Transpose%5B%7B%7B-5%2C-4%2C3%2C-3%2C-1%7D%2C%7B1%2C-3%2C-5%2C-5%2C-5%7D%2C%7B2%2C2%2C-3%2C2%2C-1%7D%2C%7B-4%2C2%2C5%2C0%2C-1%7D%2C%7B3%2C0%2C-5%2C5%2C-4%7D%7D%5D
A = {{-5,-4,3,-3,-1}, {1,-3,-5,-5,-5}, {2,2,-3,2,-1}, {-4,2,5,0,-1}, {3,0,-5,5,-4}}
A^T = {{-5,1,2,-4,3}, {-4,-3,2,2,0}, {3,-5,-3,5,-5}, {-3,-5,2,0,5}, {-1,-5,-1,-1,-4}}
---------------
LL) http://www.wolframalpha.com/input?i=%7B%7B-5%2C-4%2C3%2C-3%2C-1%7D%2C+%7B1%2C-3%2C-5%2C-5%2C-5%7D%2C+%7B2%2C2%2C-3%2C2%2C-1%7D%2C+%7B-4%2C2%2C5%2C0%2C-1%7D%2C+%7B3%2C0%2C-5%2C5%2C-4%7D%7D*%284%2B5%29
http://www.wolframalpha.com/input?i=Transpose%5B%7B%7B-45%2C-36%2C27%2C-27%2C-9%7D%2C%7B9%2C-27%2C-45%2C-45%2C-45%7D%2C%7B18%2C18%2C-27%2C18%2C-9%7D%2C%7B-36%2C18%2C45%2C0%2C-9%7D%2C%7B27%2C0%2C-45%2C45%2C-36%7D%7D%5D
B = {{-45,-36,27,-27,-9}, {9,-27,-45,-45,-45}, {18,18,-27,18,-9}, {-36,18,45,0,-9}, {27,0,-45,45,-36}}
B^T = {{-45,9,18,-36,27}, {-36,-27,18,18,0}, {27,-45,-27,45,-45}, {-27,-45,18,0,45}, {-9,-45,-9,-9,-36}}
---------------
mm) http://www.wolframalpha.com/input?i=Total%5B%7BTotal%7B-45%2C-36%2C27%2C-27%2C-9%7D%2CTotal%7B9%2C-27%2C-45%2C-45%2C-45%7D%2CTotal%7B18%2C18%2C-27%2C18%2C-9%7D%2CTotal%7B-36%2C18%2C45%2C0%2C-9%7D%2CTotal%7B27%2C0%2C-45%2C45%2C-36%7D%7D%5D
- 216
---------------
nn) http://www.wolframalpha.com/input?i=%5B%7BTotal%7B-45%2C-36%2C27%2C-27%2C-9%7D%2CTotal%7B9%2C-27%2C-45%2C-45%2C-45%7D%2CTotal%7B18%2C18%2C-27%2C18%2C-9%7D%2CTotal%7B-36%2C18%2C45%2C0%2C-9%7D%2CTotal%7B27%2C0%2C-45%2C45%2C-36%7D%7D%5D
{-90,-153,18,18,-9}
---------------
Beh, avrai capito come proseguire, vero?

[Risolto] qualcuno riesce ad aiutarmi? pagina=5

Domande