Welcome to Eduardo Viruena Silva's Home Page
Eduardo Virueña Silva
This is a toy, hope you like it... Spirograph (PDF)
or... if you prefer the PDF version Spirograph (GIF)
or... if you like play with a
Spirograph inside a Spirograph spirograph
and, if you want even more... then try the
Graphics of functions
f : [ax, bx] ×
[ay, by] → R
Creates graphics of functions R2 → R.
Click here to make PDF turtle graphics
Click here to make EPS turtle graphics
L-Systems and 2-Dimensional turtles, recursive curves.
L-Systems and 3-Dimensional turtles, recursive polyhedra,
Four Dimensional Convex Regular Polytopes
Geometrical descriptions of four dimensional convex regular
Create your Maze or Labyrinth
Beakman's electric motor
Click here to watch the video
Having a slicer in home is not a good idea, specially if you are
a mathematician. Take a look.
Long division is a program for verifying
your elementary school homework, please don't use it for cheating.
Trigonometry (without drawing)
Memories of my courses on Calculus and Trigonometry
This page have been visited a lot of times times since June 30th, 1997.