Example 2.15

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Find the roots for the following:

To find the roots, first we enter the coefficients of polynomial in to a row vector p with p=[0.6 0.3 -0.9] and issue the r=roots(p) command. The following shows the command window output:

    » p=[0.6 0.3 -0.9]
p =
    0.6000  0.3000  -0.9000
» r=roots(p)
r =
    -1.5000
    1.0000
»