Short question: Matrix with two arguments

Hi

I have seen the following syntax in some places:

   [x y]

and was wondering what exactly it means? Something as:

[x y] = [1 5]

doesn't seem to work - so what exactly is this good for? Thanks a lot

Answer 1

[José-Luis]

It can mean several things.

• Output of a function:

 [x y] = somefunction(arg1, arg2)

The function has two outputs, and one will be saved in x and the other in y

• Concatenation

 newVec = [x y];

The variables x and y are concatenated, provided they have the same size, and assigned to a new variable.

The brackets, however, cannot be used for multiple assignment as you did in your example. For more information look for "square brackets" in the documentation.

[MiauMiau]

Thanks a lot, that really helped!

[Matt J]

The brackets, however, cannot be used for multiple assignment as you did in your example.

To accomplish this, you would use DEAL,

    >> [x,y]=deal(1,5)

    x =

         1

    y =

         5