[FRIAM] square land math question

[Frank Wimberly]

The mathematical concept of a point in R^2 is that a it is completely
determined by the values of its coordinates.  Same coordinates, same
point.  A square per se Is determined by the length of its side(s).  There
is no information about it's location.

If I were writing a Square class for a graphics application I would include
two member variables:

    LocationOfLowerLeft point;
    LengthOfSide double;

I haven't written code for years so beware.

---
Frank C. Wimberly
140 Calle Ojo Feliz,
Santa Fe, NM 87505

505 670-9918
Santa Fe, NM

On Thu, Jul 23, 2020, 3:58 PM uǝlƃ ↙↙↙ <gepropella at gmail.com> wrote:

> No, I don't. What's the difference?
>
> On 7/23/20 2:46 PM, Frank Wimberly wrote:
> > OK.  As long as you grok the difference between the mathematical concept
> and the OO concept.
>
> --
> ↙↙↙ uǝlƃ
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