Founded in late 2003 and heartquartered in France, we are **non-profit** and **independant**.

We believe in the open web, think internet services should be sustainable, build for the long term.

While we are re-launching the service, we only accept new members through invitation.

- Find a list of Directory Sites to use.
- Top Business Web Directory

The extended version of Formulae, a physical sciences reference app. This app is suitable for people who want to study chemistry or maths on the go, or are just a little forgetful with all those important formulas! Contains chemistry and maths content, including functional groups, named reactions (including mechanisms) and, of course, loads of equations.

Today’s Riddle contains over 500 challenging riddles that will keep you thinking for days!

A 12-year-old child prodigy has astounded university professors after grappling with some of the most advanced concepts in mathematics.

MathPac offers: On-Screen Help, & Word prompts…Graphs w/Evaluate, Zoom, Pan, Trace, Min, Max, Intercepts, Intersections, Tableview, dy/dx, Limits, Integrals
Also
Factors, Slope-EQ, Sequences, Sums, Matrix Operations, Regressions, Complex numbers, Degrees & Radians, and a TVM Solver for those business applications.

Think you know a lot about calculus? Use Calculus Flashcards to find out. Test your knowledge of limits, derivatives, and integration. Pick a category to see a set of problems, try and work it out and then see a detailed solution worked out step-by-step.

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(6 marks)