Define the following vectors of 9 elements each:

u = (7,4,9.9,0,4,3,6,2.1,1.9)
v = (0,0,0,0,0,0,0,0,0)
w = (1.1,1.2,1.3,...,1.9)

u = [7;4;9.9;0;4;3;6;2.1;1.9]
v[1:9] = 0
w = [1.1:1.9:.1]

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