Recent Projects in Math projects

cube_root_graph

Calculation of the cube root of a number (a)and initial value of cube root x0. This is a remix of my project "Heron's square root" but now i use a List. Press the buttons (1.2..) to start.

Αντιστοιχία αριθμού_ποσότητας

Ellipse_two_rods

Another construction of ellipse! ........Choose the length of AB and AC (CAB right angle)................................... Green flag to start and space bar to clear.

motion1_dog

Green flag to start...

Ellipse_Drawer

The Dutch mathematician Franz Van Schooten (1615-1660) came up with a simple device for drawing ellipses. As the point O is dragged along the horizontal axis, the point P (pen) traces out an ellipse. ........ Green flag to start - Space bar to clear.

Ellipsograph_Proclus

An ellipse drawer attributed to Archimedes (or trammel construction or L'Ellipse du jardinier! ). The point A is attached to the horizontal axis in such a way that it can slide along the axis. Similarly, the point 0 is attached to the vertical axis and allowe to slide along it. The point at the end of the segment traces out an ellipse................. Green flag to start.

ellipse000

An ellipse can be defined as the locus of points, the sum of whose distance from two fixed points (the FOCI E1, E2) is constant. Green flag to start.

Champs(9-12)

Champs(9-12) 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 : Look at Champs (1-4).and Champs(5-8) ----------------------------------------------------------------+Use the slider bar to change the champs+Use the slider bar to change the needles. And press on the green flag ...----------------------------------------------------------------Those i prefer : C10 N7 ; C9 N16 ; C11 N3 and C12 N6 . Send me the parameters of those you like ! -------------------------------- Suite de Champs(5-8), je prépare Champs(13-16)

Difficult Loop Art

Thanks mathjp ( for this new curlicue). http://scratch.mit.edu/projects/mathjp/273830 CREDIT: Music : Barbarella (extrait)

GeoShapes

You can make many different shapes with this exciting 7 piece puzzle. GeoShapes Consist of two right, an equilateral and an isosceles triangles, a rectangle, a Kite, and a parallelogram. You can make many interesting shapes with these pieces and many important concepts in geometry can also be explored with them. Press Competition to see how you can remix your own version of GeoShapes and later enter into a competition that will be announced. I would like to thank my collaborator ffred for all his great comments and testing and debugging the project. I have borrowed the chimes from 97Castle's Music Balls. Thanks 97Castle. ***(Last Update 9/24/2008)*** Entry 1 - Right Fist by ffred

Curlicues

Press the green flag *********************** Ten examples of fractal curlicues . A special program for Scratch .Physicists will recognise a curlicue as a discrete version of Cornu's spiral in optics, and indeed curlicues can be interpreted as diffraction experiments too. ********************** Use the sliders to choose examples and colors and press the green flag. ********************** Reference: F. Berry and J.Golbert,"Renormalisation of Curlicues"in Nonlinearity n°1

Right_angle_mirror

RIGHT ANGLE MIRROR: 3 images ................ INSTRUCTIONS 1) Green flag to start 2) Click on the stage (white region of the screen) 3) Move the mouse (without click) and the pen will draw anything you want 4) SPACE bar to record the motion of the pen 5) Press the button PLAY to draw the 3 images. Thanks to CrazyGamerC for the idea (Symetrical_Draw)

Pythagoras_proof5

US President James Garfield developed his own proof of Pythagorean Theorem in "The Journal of Education" (1876).Wait 10 sec... Green flag to start. There is an ERROR in the equation on the right side of the screen. Should be area= c^2/2+ab. THANKS Paddle2See, once again!

coin_probability

COIN EXPERIMENT.................................. With this project i want to answer the question: How many heads (or tails) I really expect to get if i toss a coin (p.e. one Greek EURO) k times? Frequency of heads (f_head) =number of heads in succesive trials of k tosses of of a coin. Relative frequency of heads = f_heads / k. Green flag to start.

VERY_IMPORTANT[1]

remix and add to as many galleries as you can!!!!