Trait logaddexp::LogAddExp

pub trait LogAddExp<Rhs = Self> {
    type Output;

    fn ln_add_exp(self, other: Rhs) -> Self::Output;
}

A trait for computing ln_add_exp

Required Associated Types

type Output

The result of the computation

Required Methods

fn ln_add_exp(self, other: Rhs) -> Self::Output

Compute the log of the addition of the exponentials

This computes the same value value as (self.exp() + other.exp()).ln() but in a more numerically stable way then computing it using that formula.

Examples

use logaddexp::LogAddExp;
100_f64.ln().ln_add_exp(0.0); // 101_f64.ln()

Implementors

impl<'a, T> LogAddExp<&'a T> for Twhere
    T: Float + FloatConst,

type Output = T

impl<T> LogAddExp<T> for Twhere
    T: Float + FloatConst,

type Output = T