1 Differentiability at a derived point Left/right derivative Graphical interpretation of complex functions and values 2 Differentiability over an interval operations Derivation of a reciprocal Extreme function of the roll The number of fine accessories Derivation and variations Limit of delivery 3 Higher order derivative Successive derivatives Class Cn Operations 4 Convexity of a convex function Inflection point 5 Supplements L’Hospital Rule

I present lessons in a professional manner that helps a lot to understand and assimilate easily. Lessons in mathematics, physics and chemistry in all primary, middle and secondary levels, in Arabic and French. Add to Arabic language lessons for all Muslims, primary and middle school.

The continuity is associated with the idea of continuity does not originate. In a continuous geometrique, like the plan or the space, a point can be replaced continuously to apply a precision arbitraire at the other point. The idea of continuation is a simple way to use mathematics.