Coincidence Freehand --- Introduction ---

This module is an exercise-game on real functions and their graphical representations.

The server presents to you the curve of a real function, and you have to find a function such that its curve is as close as possible to that of the server. You can try several times, and your best reply will be taken into account to compute a score attributed to you. The computation of the score is based on the difference between the curve of the server and that of yours.

You will be free to use any usual functions: polynomial, rational, exponential, logarithmic, trigonometric or inverse, hyperbolic or inverse, etc. And you will need to compose these functions in a most efficient possible way, as your function must be limited in its length.


Choose the level of difficulty suitable for you: 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 .

Detailed menu

Other exercises on: Coincidence   Functions   Curves  

Other recreations on: Coincidence   Functions   Curves  


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Description: find the best possible approximation of a given curve. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games

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