Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**Sabbir****Guest**

Do sequences have to have numeriacal terms? or can it have non-numerical terms too,for example,can this be a sequence {1} , {1,2} , {1,2,3} , ... ?

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

They needn't have numbers as terms. Sets and letters can also be sequence terms.

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**bob bundy****Administrator**- Registered: 2010-06-20
- Posts: 8,137

one; two; three; .......

a; aardvaak; aback; abacus; ..........

Bob

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