AQA GCSE Mathematics · 8300
Specification A20 · Paper 1, Paper 2, Paper 3
Revise: Iterative MethodsBecause the rule was obtained by rearranging the original equation, that fixed point is also a solution of the equation.
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GCSE Mathematics · key term
A value unchanged by an iteration rule, so .
Used by AQA and Edexcel
Specification A20 · Paper 1, Paper 2, Paper 3
Revise: Iterative MethodsBecause the rule was obtained by rearranging the original equation, that fixed point is also a solution of the equation.
Specification A20 · Paper 1, Paper 2, Paper 3
A value satisfying , so applying the iteration rule leaves it unchanged.
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Provided the formula came from a valid rearrangement of the original equation, this fixed point solves that equation.