freeware
http://groups.yahoo.com/group/mathc/
* Calculus : Numerical Derivatives.
************
Windows : Dev-C++ 4
Linux : gcc abc.c -lm Return
a.out Return
************
* You can compile the *.c files directly without create a project.
************
Numerical Derivatives.
c03f_1a.c : first.
c03f_1b.c :
c03f_1c.c :
c03f_2a.c : second.
c03f_2b.c :
c03f_2c.c :
I have used :
f'(a) = f(a+h) - f(a-h)
-------------
2h
f''(a) = f(a+h) - 2 f(a) + f(a-h)
----------------------
h**2
************
The members can try these links :
http://groups.yahoo.com/group/mathc/files/C/D/c03f.zip