Function fixedpoint::fixedpoint

pub fn fixedpoint<T, U>(
    func: &Fn(U, &T) -> U, 
    x0: U, 
    args: &T, 
    maxiter: Option<usize>, 
    maxval: Option<U>
) -> Result<U> where
    U: PartialEq + PartialOrd + Copy + Debug, 

Compute the fixed point of a given function

Given a function func, compute the fixed point of the function such that func(x, args) = x args is a reference to any object that the function uses as auxillary data maxiter is used to limit the maximum number of iterations that the function will go through before giving up. The default is 100. If a maxval is provided, then the fixedpoint computation will stop when the value of the function exceeds maxval. This is mostly useful in providing upper bounds on monotonic functions.

The args parameter is generic. So you can pass arbitrary data types to it that only the provided function needs to know how to interpret. This allows you to pass a Option, struct, Result or any other type of complex object as well.