Mathematics A-Level
rounding bounds verification
What rounding bounds verification means in Mathematics A-Level, as defined for WJEC.
Definition of rounding bounds verification
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Reference: WJEC
Evaluating f(x) at the upper and lower rounding bounds [α − 0.5 × 10⁻ᵏ, α + 0.5 × 10⁻ᵏ], where a sign change between these bounds confirms the root rounds correctly.
Topics that use rounding bounds verification
- Numerical Methods (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- bounds for the true integral
- cobweb diagram
- contextual problem solving
- divergence
- failure of sign change
- fixed-point iteration
- Intermediate value theorem
- Newton-Raphson method
Using rounding bounds verification in the exam
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