Computer Lecture-3

VECTORS AND MATRICES IN MATLAB
Vectors
The most direct way is to put the values that you want in the vector in square brackets, separated by either spaces or commas. Example:
>> v = [1, 2, 3, 4]
v =
1 2 3 4

The colon operator can be used to iterate through the regularly spaced values. Example:

>> vec = 1:5
vec =
1 2 3 4 5

With the colon operator, a step value can also be specified with another colon, in the form (first: step: last). Example:

>> nv = 1:2:9
nv =
1 3 5 7 9

Similarly, the linspace function creates a linearly spaced vector; linspace(x,y,n) creates a vector with n values in the inclusive range from x to y. For example, the following creates a vector with five values linearly spaced between 3 and 15, including the 3 and 15:

>> ls = linspace(3,15,5)
ls =
3 6 9 12 15

Vector variables can also be created using existing variables. For example, a new vector is created here consisting first of all the values from nv followed by all values from ls: