How It Works
Arithmetic: aₙ=a₁+(n−1)d. Geometric: aₙ=a₁r^(n−1). Up to 1,000 terms; unknown patterns are not guessed.
Reference Sources
FAQs
How does this calculator work?
Arithmetic: aₙ=a₁+(n−1)d. Geometric: aₙ=a₁r^(n−1). Up to 1,000 terms; unknown patterns are not guessed.
What assumptions should I check?
Check the units and definitions shown beside each input. Results use the values you enter.