Mathc: 
Algebra Linear,
Gnuplot.
 
Chapter 03 : The Derivative :
The tangent :
c03a.zip 
    (You can see the result in 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.
The normal :        
c03b.zip 
    (You can see the result in Gnuplot).        
    * Draw    the normal.
    * Animate the normal.
    * Find the intersection points of the normal with the x-y axis.
    * Find the length of the normal from P to the x axis.
    * Find the length of the normal from P to the y axis.
    * Find the length of the under normal.
Newton's method :        
c03c.zip 
    (You can see the result in Gnuplot).
    * Compute sqrt(a).
    * Compute and draw the real roots of f.
    * Compute and draw the intersection points of g and h.
Mean Value  :        
c03e.zip 
    (You can see the result in Gnuplot).
    * Find a number c in (r,s) that satisfies the mean value theorem.
Chapter 04 : The Integrals :
Trapezoidal, Simpson's rule  :        
c04g.zip 
Chapter 05 : Appplications of the definite integral :
Area  :        
c05a.zip 
    (You can see the result in Gnuplot).
Solids of revolution. "Disk"  :        
c05b.zip 
    (You can see the result in Gnuplot).
Solids of revolution. "Cylindrical Shells"  :        
c05c.zip 
    (You can see the result in Gnuplot).