Introduction

Real Example

Problem

Interactive Animation

ε = (L − L₀)/L₀  ·  ΔL = L − L₀  ·  u = 2−p  ·  |ε̂ − ε|/ε ≤ u/ε
Precision

Where do the digits go?

fl(L)
fl(L₀)
ΔL

Questions to Think About