exp_eps: Test of exp

exp_eps.cpp

Headings

@(@\newcommand{\W}[1]{ \; #1 \; } \newcommand{\R}[1]{ {\rm #1} } \newcommand{\B}[1]{ {\bf #1} } \newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} } \newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} } \newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} } \newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }@)@exp_eps: Test of exp_eps

# include <cmath>             // for fabs function
# include "exp_eps.hpp"       // definition of exp_eps algorithm
bool exp_eps(void)
{     double x       = .5;
     double epsilon = .2;
     double check   = 1 + .5 + .125; // include 1 term less than epsilon
     bool   ok      = std::fabs( exp_eps(x, epsilon) - check ) <= 1e-10;
     return ok;
}

Input File: introduction/exp_eps.omh