Vector Creation

Although there is no distinct vector type in , you can pretend that there is. If your algorithm or program does not need two dimensional arrays, then you can use matrices as one dimensioned arrays. When using vectors, or single dimension arrays, row matrices are created. The simplest way to create a vector is with the `:' operator(s):
$\begin{rail} Vector: start ':' end ( ':' increment ) ?; \end{rail}$
The first operand specifies the starting value, the second operand specifies the last value. The optional third operand can be used to specify an increment. If this is not specified, the default increment is 1. Here are some examples:

> c = 1:4
 c =
        1          2          3          4  
> d = 1:3:0.5
 d =
        1        1.5          2        2.5          3  
> e = 1:3:0.6
 e =
        1        1.6        2.2        2.8

The other way to generate a vector is to simply specify it using the matrix form with one of the dimensions set to 1. This method allows you to generate a vector containing any elements, not just an evenly spaced sequence. Just remember that doesn't know anything about vectors — they are just a matrix where one of the dimensions is 1. Some functions do something slightly different if they come across a matrix that is the vector form, but they are really just a notational convenience, not a fundamental change, and anything that applies to a matrix also applies to something that we treat as a vector.