johnny77 wrote:
physicsnut42 wrote:
johnny: yeah. Sorry about that, johnny. I didn't realize somethin like that would happen.
Any one who has read my posts and answer the question will get the issue I had with it.

I guess that was number 107. I like prime numbers!
Because on floors with quadratic tiles these make up pretty long rectangles which are easily counted
Let's apply the sieve of Eratosthenes by clicking one post after another.
This one actually I didn't know, nice!
Sieve of Atkin
Just
accidentally realized if you take equally sided triangles and make new triangles out of those then "tile prime numbers" are quite easily detected
(Not 1 4 9 16)
If you take right angled triangles
then these prime numbers get more complicated
(Not 2 4 8 9 16 18 25 32...) (is it strictly right angled isosceles triangles, Geodreieck,
http://de.wikipedia.org/wiki/Geodreieck? Hmm I guess that's ok also with just right angled)
Anybody wants to try general triangles or rectangles or whatever you can arrange as a new same type of thing in 2D
(such as general quadrilateral or how you call this in English, those
http://en.wikipedia.org/wiki/Quadrilateral)
"Tile Prime numbers" are those that you cannot arrange as new
same type triangles/rectangles... (But arranging them in only one direction is forbidden, except 2)
Kan kalla mig för idiot, det har jag ingenting emot!
Ne natürlich nicht niemals nein das kann nicht sein...
Viel Spaß;-)
("Fermat zeigte, dass die ersten fünf Fermat-Zahlen Primzahlen sind, und vermutete im Jahr 1637, dass dies auf alle Fermat-Zahlen zutrifft. Diese Vermutung wurde von Leonhard Euler 1732 widerlegt, indem er mit 641 einen echten Teiler von F5 = 4294967297 fand")
A lot of work...
That one, too:
(" Im Jahr 1894 fand Johann Gustav Hermes nach mehr als zehnjähriger Anstrengung eine Konstruktionsvorschrift für das regelmäßige 65537-Eck und beschrieb diese in einem Manuskript von mehr als 200 Seiten, welches sich heute in einem speziell dafür angefertigten Koffer in der Mathematischen Bibliothek der Georg-August-Universität Göttingen befindet.") That guy must have been an aspie.... Or really
not??? Going to translate those later...
Graf Zahl ist mir zu banal
This is also a reply to all with those numbers
Start drawing! Or cutting or whatever ... My A4 paper is already full of numbers and triangles
Last edited by onks on 29 Aug 2012, 2:46 am, edited 1 time in total.