Recent Projects in Math projects!

number recognition

reads numbers using refrence points. the numbers have to be white with a black bacground or visa verca but otherwise it should sucesfully read any font. at the start it won't recognise anything. if ?number? shows on the screen, then click "learn, select the number that it is and it will add it to it's memory.

weight physics

scales can tell the combined weight of all the weights on top of them

file decoder V4.

decodes messages from number strings to letters. the message can be sent via email, memory stick/pen and msn. decodes messages from DC's V4 coder. does not work online because of the lists.

File coder V4

The new V4 file coder from DC uses lists to display type instead of variables, allowing for potentially infinite length messages without the need for unhelpful "ask" blocks or difficult text editing. Backwards compatable with V3 as long as the message is not longer than V3's capacity. Use this project to make coded messages that are decoded by DC's V4 decoder at the other end. does not work online because it contains lists.

JpStringArt_2

Another String Art : 2.112 patterns ************************************ Choose the parameters : n ; d ; Initial(color) ;colors(number of colors) and press the green flag. ************************************ First look at these parameters : n=91 d=1 n=73 d=4 n=51 d=8 n=5 d=5 n=4 d=13 n=61 d=15 n=7 d =23 *********************************** Please send me, your better parameter ! ********************************** For other StringArt : http://scratch.mit.edu/galleries/view/59407 *********************************** Mathematical notes: This is a new creation for Scratch ! A Maurer rose of the rose r = sin(nθ) consists of the 360 lines successively connecting the above 361 points. Thus a Maurer rose is a polygonal curve with vertices on a rose. But, if you explore with Scratch and not choose the rose r= sin(nθ) ... :) mathjp

Hénon_Attractor

Hénon Attractor ------------------------------------------ A new Strange Attractor http://scratch.mit.edu/galleries/view/59341 Stange Attractor of Hénon (french mathematicien). I use his equations(1969) download for more informations in the script. ------------------------------------------- I like : Par9 Pen3 Z12 Par15 Pen3 Z3 Par17 Pen1 Z3 Par33 Pen2 Z5 Post your discoveries. --------------------------------------------- CREDITS: Audacity NiD and nevit for the link FractMus 2000 (GPL License) FractMus 2000(Fractal Music Composition Software) generate note using algorithm. I use Hénon Attractor. ----------------------------------------------- En français. Une référence est le très beau livre d'Ivar Ekeland "Le Calcul, l'Imprevu" Editions du Seuil (1984). Page 57-58 : "Avec les moyens modernes, il est facile et amusant de faire ce travail (étude de la transformation proposée par Hénon). Le lecteur est invité à s'y essayer ... "

Happy Pi Day!

I almost forgot, oh well, I made it in time! I made a worse version of this last year at http://scratch.mit.edu/projects/maki/118125 and this time I used sprite detection, and a circle.

2-1 Dimensional Transformation

This was an old project of mine, and I thought I'd share it for no apparent reason.

Phi Calculator

A project I made that calculates and draws Phi using the Fibonacci Postulate. PRESS SPACE TO PAUSE AND UNPAUSE THIS!

Spiral from Circle_again

Thanks forest for the idea and nevit for the background.

spiral_from_circle

Thanks forest for the music http://scratch.mit.edu/projects/forest/701139

List

Give it 5 numbers, and it will tell you the most, the least, and all your numbers.

Pythagoream theorem

A project using the Pythagoream theorem.