Calculus › Section D · Applications of derivatives › Topic D.8

Newton's method

Some equations, like cos x = x, have no algebraic solution at all. Newton's method solves them anyway, using one tangent line after another to home in on the answer.

In this topic

  • When algebra runs out
  • Deriving the step
  • Worked example: computing √2 by hand
  • Why it converges so fast
  • Worked example: an equation algebra cannot solve
  • When Newton's method fails
  • A procedure and a stop rule
  • Common mistakes to avoid
  • Key takeaways

This topic is part of Wuanberri Pro. Checking your access…

Standards: Beyond AP

← Previous topicNext topic →