f938e13c-df8c-4991-92ec-67702248f46c 42 3 5 decimal

&[DATE] &[TIME] - &[FILENAME]

Reference ::

de Bruijn's article "Arithmetic Medallions and Friezes" in the journal "Nieuw Article voor Wiskunde" vol. 9 no: 3 (1991). http://alexandria.tue.nl.../freearticles/597584.pdf

p 1 :

q 3467 :

3997399912 mat

'δ' mod kernel generatrix for
integer values square jumps  |_n δ n n 1 - (* 2 / p * 2 q * mod q < 11 - if :

de Bruijn "Frieze" pattern Frieze path 2 el 0 : (Smath must be initialised ≡ n 22 q * 3 + (range path n el path n 1 - el 1 i + 2 / 2 n * 1 - δ * + 1 i - 2 / 2 n * δ * + eval : for path 31 line :

F Frieze Re Frieze Im augment eval :

счастливого Рождества = Merry Xmas

F 2 1 sys

.. [p, q] 1346712 mat 3346712 mat 7346712 mat 9346712 mat 3997399912 mat 2003241512 mat 2995299912 mat 1155712 mat 3155712 mat 5155712 mat 7155712 mat 31355712 mat 1355712 mat # # # 161 mat

"pica" is a unit of measure in typography, 1 pica = 12 pixels. Below, the vertical line is in 1 pixel deviation.

Δ δ 1 - δ 222 mat :

δ 5 :

t δ UnitStep 1 t δ - sign + (2 / :

Delay δ 0.5 - δ 12 black 15 mat :

UnitStep ... sign = signum

x δ UnitStep Δ Delay 3 1 sys

Frieze [1, 3467] sub F 5225690012 submatrix :

sub

sub-quadrant 30170012 mat 1760340012 mat 3500512012 mat 5225690012 mat 51 mat