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{SECT 0 {SECT 0 {PARA 3 "" 0 "1" {TEXT -1 26 "Soluzione dell'esercizio
 1" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 72 "P:=sum(x^i,i=0..11);\n
Q:=sum(x^i,i=0..7);\nMCD:=gcd(P,Q);\nsolve(MCD=0,x);\n" }}}{EXCHG 
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-1 26 "Soluzione dell'esercizio 2" }}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 214 "with(linalg):\nA := matrix(7,5,\n[-1, -2, 1, 7, 5,\n
2, -1, -6, 4, 4,-21, 9, -5, 16, 18,\n-9, 5, -4, 7, 3,\n3, 11, 14, -11,
 -22,\n6, 7, 3, 4, -9,\n2, -1, -2, 5, -7]):\nb := vector([5, 4, 18, 3,
 -22, -9, -7]):\nlinsolve(A,b);" }{TEXT -1 0 "" }}}{EXCHG {PARA 0 "" 
0 "" {TEXT -1 34 "Il sistema ha una unica soluzione." }}}{EXCHG {PARA 
0 "> " 0 "" {MPLTEXT 1 0 0 "" }}}{PARA 0 "" 0 "" {HYPERLNK 17 "Torna a
l testo" 1 "esame2.mws" "2" }}}{SECT 0 {PARA 3 "" 0 "3" {TEXT -1 26 "S
oluzione dell'esercizio 3" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
235 "with(linalg):\nA := matrix(10,10,0):\nfor i from 1 to 10 do\nfor \+
j from 1 to 9 do\nif i = j +1 then A[i,j] := 1 fi:\nod:\nA[i,10]:=i:\n
od:\nA=evalm(A);\nZ := matrix(10,10,0);\ni:='i':\nP:=x^10-sum(i*x^(i-1
),i=1..10):\nB := subs(x=A,P):\nequal(B,Z);" }}}{PARA 0 "" 0 "" {TEXT 
-1 29 "modo alternativo di definira " }{XPPEDIT 18 0 "A;" "6#%\"AG" }
{TEXT -1 1 ":" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 117 "funz := (i
,j) -> if i = j+1 then 1\n               elif j = 10 then i\n         \+
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