Do you store store one off data arrays in a class?

I have a class which when initialised performs a one off calculation using 3 data arrays. These arrays calculate the coordinates of the class object (ita a rubixs cube btw).

My question is this. Is it right to store these arrays within the class, or should they be outside it? Im not sure myself.

i think your asking if this array should be a class on its own or in another class? if that's what your asking it would depend on how complex each array element is. can you post code or give more details

It all depends on your style. OOP is just to help YOU organize your data - it's nothing for the computer but more work.

There are 2 arrays holding 153 elements between them, which create the 600 or so coordinates of the rubixs cube (27 smaller cubes, 8 vertices, 3 coordinate you do the math ).
The arrays are only used when the rubixs cube is created.
Is it neccessary to store the data in the class? Or is it good programming to encapsulate everything that the class can possibly use?

Assuming they don't ever change I would perhaps have them as a constant array declared at the top of the rubix class file, kind of like pretending to encapsulate the data. Alternatively, you might declare them to be a static member of the class - perhaps the better option. There are any number of possibilities but I would suggest using the one that suits your programming style.

I wouldn't put them in a class, unless you plan on making your program use more than one rubix (SP?) cube, and the array values will change. Just my humble opinion.