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Series and Partial Sums

Mathematics · Class 11

Sn = a1+...+an. Sigma notation named: sumk=1ⁿ ak. Do not mix an (one term) with S_n (a total).

S_n is a sum
sequence = list
series = sum of the list
term vs sum
SERIES AND PARTIAL SUMS: Sn = a1+...+an. Sigma notation named: sumk=1ⁿ ak. Do not mix an (one term) with S_n (a tota
SERIES: S_n = a1+...+an.
WHAT — SERIES AND PARTIAL SUMS: Sn = a1+...+an. Sigma notation named: sumk=1ⁿ ak. Do not mix an (one term) with S_n (a tota
WHY — Why it matters: This rule is a separate learning unit inside sequences and the general term. It can be defined, appl

Right triangle — Series and Partial Sums — original sketch for this lesson (not copied from a textbook).