1. Question 965
    was: Numerical Methods - Change of Sign - Zoom In
    now: Numerical Methods - Change of Sign - Zooming In to Find Roots
  2. Question 4406
    was: Numerical Methods - Change of sign - Zooming in
    now: merge with Question 965
  3. Question 237
    was: Integration - Approximate Integration - The Trapezium Rule
    now: Integration - Approximate Integration - Investigate The Trapezium Rule
  4. Question 1283
    was: Integration - Approximate integration - Introduction
    now: Integration - Approximate integration - Trapezium Rule for Difficult Integrals