**Unformatted text preview: **x,y ] (e) [ x ; y ] (f) A-[ x ; y ] (g) [ x ; y ] 3.(Matlab) Create two 3 × 3 matrices by A = rand(3 , 3) ,B = rand(3 , 3). (a) Compute A + B and B + A . (b) Compute AB and BA . (c) What can you conclude from the results of (a) and (b)? (d) We have the formula ( x + y ) 2 = x 2 +2 xy + y 2 that works for all real number x and y. Check if the same formula hold for your matrix, i.e. ( A + B ) 2 = A 2 + 2 AB + B 2 . If not, ﬁnd the correct the formula for ( A + B ) 2 . 1...

View
Full
Document