# Re: A notation convenience for certain non-linear expressions

• From: Tom St Denis <tom@xxxxxxx>
• Date: Tue, 1 Jun 2010 06:27:15 -0700 (PDT)

On Jun 1, 9:18 am, Mok-Kong Shen <mok-kong.s...@xxxxxxxxxxx> wrote:
Mok-Kong Shen wrote:

If f11(x) etc. are functions of x, one can namely e.g. use

| f11 f12 |   | x1 |
|         | * |    |
| f21 f22 |   | x2 |

to express the vector

| f11(x1) + f12(x2) |
|                   |
| f21(x1) + f22(x2) |

that in the vector above + be substituted by xor, while leaving the
functions unchanged. On the symbolic level, one could write/discuss
M1*M2, M^(-1), C = M * P, etc., as is familiar in linear algebra.

vectors of bits just do Z^w_2.

Instead of trying to invent new terminology, why not, oh I don't know,
learn what is already out there?

Given that you've floated around MKS for the last decade or so I would
have hoped that you ended up picking up even a modest amount of actual
knowledge...

Tom
.

## Relevant Pages

• Re: Dork Van de merde claims xor implies or.
... |> Dork Van de merde claims xor implies or. ... and there is no way you or Dork can prove it does, ... you are a slave to convention and you have no intelligence. ... Engineers, Professionally), when no lamp is lit, we cannot decide that it ...
(sci.physics.relativity)
• Re: uses of xor
... It's very useful for inverting some bits in a field or register while ... leaving the others untouched. ... pure bitmapped displays, as you can xor a pattern on, then xor it off ...
(comp.lang.asm.x86)
• Re: A notation convenience for certain non-linear expressions
... that in the vector above + be substituted by xor, while leaving the ... On the symbolic level, one could write/discuss ...
(sci.crypt)