What is this calculator?
Generate an arithmetic or geometric sequence.
What can you use it for?
Use it when solving an exercise, checking a result, or working with the particular quantities shown in this form. Generate an arithmetic or geometric sequence.
How to use it
- Enter first term.
- Enter difference / ratio.
- Enter number of terms.
- Enter sequence type.
- Select Calculate (or Generate for random tools).
- Read the answer and any additional results below the form. Check the units and the limits of the method.
Formula and method
Geometric term k = first × ratio^(k−1)
The selected mode determines whether the entered step is a difference or a multiplier.
Worked example
First term: 2, Difference / ratio: 3, Number of terms: 10, Sequence type: Arithmetic. The result is 2, 5, 8, 11, 14, 17, 20, 23, 26, 29 (sequence terms).
Assumptions and limits
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.
Frequently asked questions
What inputs does the Number Sequence Calculator need?
Use first term, difference / ratio, number of terms, sequence type. Read the answer and any additional results below the form. Check the units and the limits of the method.
What assumptions apply to the Number Sequence Calculator?
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.