mathjp's Recent Projects

Scratch2_Attractor

Scratch2_ Attractor ------------------------------------------ A new Strange Attractor ! http://scratch.mit.edu/galleries/view/59341 New creation for Scratch ------------------------------------------- Better with pen1 or pen2 I like : Ex3 Pen1 Vcolors4 Ex9 Pen2 Vcolors8 Ex11 Pen2 Vcolors10 Ex17 Pen1 Vcolors2 Ex21 Pen1 Vcolors6 Post your discoveries. ---------------------------------------------- Automatic zoom + Initial Colors ------------------------------- 0 No music 1 Nino Rota ( Movies Theme short extract)

Scratch1_Attractor

Scratch1 Attractor ------------------------------------------ A new Strange Attractor http://scratch.mit.edu/galleries/view/59341 This 's a new attractor a exclusivity for Scratch (download for the equations) ------------------------------------------- I like : Par8 Pen2 Z9 Par12 Pen3 Z6 Par14 Pen1 Z3 Par17 Pen2 Z7 Par20 Pen1 Z6 Post your discoveries. --------------------------------------------- CREDITS: Audacity NiD and nevit for the link FractMus 2000 (GPL License) FractMus 2000(Fractal Music Composition Software) generate note using algorithme ----------------------------------------------- Music: 0 No music 1 Sci-Fi 2 Celesta 3 Xylo Make with FractMus and Audacity !

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 ... "

New_Champs(Zoom)

New_Champs with zoom ! Now, version with a major improvement : you can use zoom (and Varcolors) in the field ! ******************************* Use the slider bar to change: Champs Needles Varcolors Zoom And press on the green flag .********************************* Those I prefer : C1 N6 Z4 ; C2 N8 Z6 C3 N16 Z5 C4 N11 Z3 C5 N18 Z6 C6 N12 Z6 Send me the parameters you like ! ------------------------------------------------- Imagine, a magnetic field (champ magnétique in french) and magnetized needles. Imagine a field (un champ) and squalls of wind. Imagine a brook and whirlwinds. Imagine, last but not least, the differantial equations... For others champs : http://scratch.mit.edu/galleries/view/35955 ------------------------------------------------- En français : Pour un exemple de programmation structurée voir le projet de Epixxware. J'ai préféré une vitesse acceptable en ligne, avec quelques répétitions! La référence est le livre de Jean-Paul Delahaye "Nouveaux Dessins géométriques et artistiques avec votre micro-ordinateur" aux éditions Eyrolles 1985. Mais, il faut travailler pour obtenir ce projet sur Scratch.

JpStringArt_1

New String Art :2.880 patterns ************************************ Choose the parameters : n ; s ; Initial(color) ;colors(number of colors) and press the green flag. ************************************ First look at these parameters : n=3 s=1 n=4 s=4 n=4 s=13 n=6 s=19 n=7 s=5 n=121 s=3 *********************************** Please send me, your better parameter ! ********************************** Mathematical notes: This is a 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

Maurer Rose

Choose the parameters : n ; d ; Initial(color) ;colors(number of colors) and press the green flag. ************************************ First look at these parameters : n=2 d=29 n=2 d=39 n=3 d=47 n=4 d= 31 n=6 d= 71 n=7 d= 19 *********************************** Please send me, your better parameter ! ********************************** Mathematical notes:A Maurer rose of the rose r = sin(nθ) consists of the 360 lines successively connecting 361 points. Thus a Maurer rose is a polygonal curve with vertices on a rose. For more information look at Wiki (Maurer rose).

Octo_ScreenSaver

Octo_ScreenSaver ******************************** Remix of nevit's project and forest version. (pearls cmuriel sprites) ********************************** Music : Extract radio with Audacity. Croatian Rhapsody composed by T. Huljic, Croatian pianist M. Mrvica (thanks fanmusic).

Plis

Plis Screensaver. Enjoy *********************** Credit : AddZero ****************** Music : Pradal-Guirao-Velasquez Noche oscura (short extract).

K+R vs K

Mini chess game : King+Rook versus King Press the green flag You begin with white -------------------------------- CREDITS :Midecah for the first (but not the last ) chess engine on Scratch. ---------------------------------. This is a mini chess game. - You play white, the computer plays black. - To move, click on a piece. All possible moves will be highlighted, and clicking on a highlighted square will move the piece to it. - After you move, "Thinking..." will appear at the top of the screen. The white line above that indicates the progress of the AI engine. - The checkmate and stalemate detection work. ---------------------------------- Two questions: The first question is : How many minimal move for win ? Send me your record. The second : How many move for a stalemate ? Send me your record. .

New Petals

Press the green flag . New Petals NP(F;K) (the old is Petals P(F;K) ) --------------------------------------------------------------INSTRUCTIONS: Use the slider bar to change the form F of the petals. Use the slider bar to change the parameter K. And you have NP(F;K), press on the green flag ...----------------------------------------------------------------Those I prefer : NP(8;5) ; NP(10;3) and NP(11;7) Send me the parameters of those you like ! Enjoy ------------------------------------------------------------ En français : un peu de math. A la base on a des courbes polaires "rayonnées". Au lieu de joindre successivement les points de la courbe de façon classique, on joint chacun des points au point central. mathjp

53 Curlicues

One year on Scratch ! 53 weeks. 53 projects. Now 53 curlicues. A very long project. *********************** I like number 24 "Little Napoleon" and 53. Send me the number you like.Enjoy. *********************** Music : Variation Mission Impossible

Cousins-FFV5

Cousins.FFV5. It's the fifth project of the fractal familly. *********************** If you like it look at the other in my gallery : http://scratch.mit.edu/galleries/view/35997 ********************** It's a project with use of curlicues : http://scratch.mit.edu/galleries/view/36458 ********************** Music : Audacity and french Radio Sci-Fi (Theme female cousins mathjp's creation).

GeoEgg Puzzle

It's a remix of GeoShapes. You can make many different shapes with this exciting 9 piece puzzle. You can make many interesting shapes with these pieces and many important concepts in geometry can also be explored with them. ************************** I would like to thank Dr Super, ffred and Dapontes collaborators. *********************** CREDIT MUSIC *********************** Audacity for the intro. .Chimes from 97Castle's Music Balls. ***********************(Last Update 4/12/2009)

Surfaces

Press the green flag 64 examples.Enjoy ********************** Credit : Addzero