chapter 8 hw

# chapter 8 hw - e22= 2 f12= 0 g12=6 Part D) # 1) [E] + [B]...

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% HOMEWORK #4 % TARIQ ELHASSANI % PROBLEM 8.2 %----------------------------------------------------------------------- PART A) A= [4 1; 1 2; 5 6] A = 4 1 1 2 5 6 [n m] = size (A) n = 3 m = 2 B= [4 3 7; 1 2 7; 2 0 4] B = 4 3 7 1 2 7 2 0 4 [m n] = size (B) m = 3 n = 3 C= [3; 6; 1] C = 3 6 1 [m n]= size (C) m = 3 n = 1 D = [ 9 4 3 -6; 2 -1 7 5] D = 9 4 3 -6 2 -1 7 5 [m n]= size (D) m = 2 n =

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4 E = [1 5 8; 7 2 3; 4 0 6] E = 1 5 8 7 2 3 4 0 6 [m n]= size (E) m = 3 n = 3 F= [3 0 1; 1 7 3] F = 3 0 1 1 7 3 [m n]= size(F) m = 2 n = 3 G= [7 6 4] G = 7 6 4 [m n]= size(G) m =1 n =3 Part B) Square matrices: [B] and [E]. Column Matrices: {C}. Row Matrices: [G]. Part C) a12= 7 b23= 7 d32= invalid

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Unformatted text preview: e22= 2 f12= 0 g12=6 Part D) # 1) [E] + [B] ans = 5 8 15 8 4 10 6 0 10 #2) [A]+ [F] can't do this summation because A, and F have not the same dimension. #3) [B] + [E] ans = 5 8 15 8 4 10 6 0 10 #4) 7* [B] ans = 28 21 49 7 14 49 14 0 28 #5) [A]*[B] can't do this multiplication (differente interior dimension) #6) C' ans = 3 6 1 #7) [B]* [A] ans = 54 52 41 47 28 26 #8) D' ans = 9 2 4 -1 3 7-6 5 #9) [A]*[C] @ Inner dimension doesn't match #10) [I]*[B] ans = 4 3 7 1 2 7 2 0 4 #11) E' * E ans = 66 19 53 19 29 46 53 46 109 #12) C' * C ans = 46 PROBLEM 8.7)...
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## This document was uploaded on 10/17/2010.

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chapter 8 hw - e22= 2 f12= 0 g12=6 Part D) # 1) [E] + [B]...

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