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Product Notation (Π)
★★☆☆☆Middle School
📖Definition
Π (capital pi) is a symbol for expressing products of consecutive terms. Often used in factorials and combinations.
📐Formulas
∏_i=1ⁿ aᵢ = a₁ × a₂ × ... × aₙ
Product definition
n! = ∏_i=1ⁿ i
Factorial representation
✏️Examples
예제 1
Calculate Πᵢ₌₁⁵ i.
예제 2
Calculate Πᵢ₌₁³ 2i.
⚡Applications
Probability
Independent event probabilities
Number Theory
Prime factorization
Combinatorics
Factorials, permutations
#파이#곱#product#pi notation