Mathc: Calculus, Algebra linear,

In these packages, you can verify the result into GnuPlot.

Calculus Packages :

Chapter 03 : The Derivative.

c03a_.zip : The tangent
c03b_.zip : The normal
c03c_.zip : Newton's method

Algebra linear :

mtrxgo.zip : Geometric applications
vectac.zip : Vector2d (Reflection, Orthogonal projection)
vectad.zip : Vector2d (vertical horizontal shift)
vectae.zip : Vector3d (Reflection, Orthogonal projection)