sigma notation
What sigma notation means in Mathematics A-Level, as defined for AQA, WJEC.
Definitions of sigma notation
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Reference: AQA
A compact way to represent a sum, in which an index runs through stated integer values and the expression is evaluated at each and added.
A compact algebraic representation for the sum of terms in a series, written with the symbol ∑.
Topics that use sigma notation
- D: Sequences and series (AQA A-Level)
- Sequences and Series (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- Arithmetic sequence
- common difference
- Convergent geometric series
- Geometric sequence
- recurrence relation
- Sequence
- binomial approximation
- compound growth and depreciation
Using sigma notation in the exam
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