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    Calculus (Derivative:Tangent).

 a) You can see the result into Gnuplot.
       
    * Draw    the tangent.
    * Animate the tangent.
    * Find the intersection points of the tangent with the x-y axis.
    * Find the length of the tangent from P to the x axis.
    * Find the length of the tangent from P to the y axis.
    * Find the length of the under tangent.

     
      I have used gcc.2.9 (Dev-C++ 4    ),
                  gcc.3.2 (v2DJGPP Rhide).


        The list of all  the programs : aaprogr.txt

        Save your work in a text file : aaasave.txt


   You can joint the group of this work at :

   http://groups.yahoo.com/group/mathc/