propeller.tools.calculus

deriv

(deriv f c)(deriv f)
Returns the derivative of f evaluated at c. If called with only one argument,
it returns the derivative function.

dx

integrate

(integrate f)(integrate f a b)
Returns the definite integral of f over [a, b] using Simpson's method.
If called with only one argument (the function), returns the indefinite
integral, which takes as input a value x and (optionally) a constant c.