How come when i generated this command x=[-2:0.1:3] although the value does show but why on top there is (e.g columns 46 through 51 is there anyway to remove it?)

 x=[-2:0.1:3]

x =

Columns 1 through 15

   -2.0000   -1.9000   -1.8000   -1.7000   -1.6000   -1.5000   -1.4000   -1.3000   -1.2000   -1.1000   -1.0000   -0.9000   -0.8000   -0.7000   -0.6000

Columns 16 through 30

   -0.5000   -0.4000   -0.3000   -0.2000   -0.1000         0    0.1000    0.2000    0.3000    0.4000    0.5000    0.6000    0.7000    0.8000    0.9000

Columns 31 through 45

    1.0000    1.1000    1.2000    1.3000    1.4000    1.5000    1.6000    1.7000    1.8000    1.9000    2.0000    2.1000    2.2000    2.3000    2.4000

Columns 46 through 51

    2.5000    2.6000    2.7000    2.8000    2.9000    3.0000

Answer 1

[Guillaume]

No, this is the way matlab displays vector/matrices on the command line and there is no option to change that. More importantly, why do you care? It's only cosmetics.

Talking of extra clutter, the [] around your -2:0.1:3 are totally unnecessary.

x = -2:0.1:3

would achieve the same.

[melissa tan]

Using the same range:for y=(x+2)(x^2+3) i type in matlab in this y=(x+2)*(x^2+3), why is there error?

[Guillaume]

1) How is this related to your original question?

2)Learn the difference between matrix and array operations. I suspect you want:

y = (x+2).*(x.^2+3)

[melissa tan]

i am trying to generate a graph with the previous range and stepsize . Can i also check how to change a range of my plotted graph ?