- data SecantMethod a b
- secant :: (Ord a, Fractional a) => (a -> a) -> a -> a -> a -> Either (SecantMethod a a) a

# Documentation

data SecantMethod a b Source

Iteratively refine 2 estimates x1, x2 of a root of f until total convergence (which may or may not ever be achieved) using the secant method.

(Fractional a, Ord a) => RootFinder SecantMethod a a | |

(Eq a, Eq b) => Eq (SecantMethod a b) | |

(Show a, Show b) => Show (SecantMethod a b) |

secant :: (Ord a, Fractional a) => (a -> a) -> a -> a -> a -> Either (SecantMethod a a) aSource

`secant f x1 x2 xacc`

: Using the secant method, return the root of a
function thought to lie between x1 and x2. The root is refined until its
accuracy is +-xacc.