nDeriv takes as arguments: an expression ex, the variable
name of this expression (by default x), and h (by default
h=0.001).
nDeriv(ex,x,h) computes an approximated value of the derivative of the
expression ex at the point x and returns:
Input:
^
2,x)Output:
^
2-(x+-0.001)^
2)*500.0Input:
^
2,x),x=1)Output:
Input:
^
2),x,0.00001)Output:
^
2)-exp((x+-1e-05)^
2))*50000Input:
^
2),x,0.00001),x=1)Output:
which is an approximate value of 2e=5.43656365692.