Mathematics A-Level
Newton-Raphson
What Newton-Raphson means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Newton-Raphson
Check what you remember
Read the wording for your board, then hide it and explain Newton-Raphson in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A method that uses the tangent to the curve, giving from an estimate xₙ the next value xₙ₊₁ = xₙ − f(xₙ)/f′(xₙ).
Topics that use Newton-Raphson
- Numerical methods (Pearson Edexcel A-Level)
Related terms
- Bisection and interval narrowing
- change of sign
- Cobweb and staircase diagrams
- cobweb diagram
- Concave up
- Convergence
- Convergence and the gradient condition
- divergence
Using Newton-Raphson in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge