Square
Maths
How to calculate arithmetic sequence term
This tool calculates arithmetic sequence term from First term, Common difference, Term number (integer ≥ 1). Enter each quantity in its labelled field, then use the formula below to check the calculation.
Formula
first + (n − 1) × difference
Worked example
- First term
- 2
- Common difference
- 3
- Term number (integer ≥ 1)
- 10
Applying the formula to these values gives 29 .
What should I check?
Calculate powers, roots, logarithms, ratios, slopes and trigonometric functions. Trigonometric angles are entered in degrees.
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