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Interval Notation

Result

Calculated result [0, 5) Based on the values entered.
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Interval Notation — free online calculator.

Formula

Method: Format the lower and upper bounds with [ or ] for closed endpoints and ( or ) for open endpoints.
  • Interval Notation calculates its result from Lower, Upper, Lower endpoint, Upper endpoint. It uses the formula Calculated with the verified ST Calculator runtime.. Change any input to recalculate the result instantly.
  • The main inputs are Lower, Upper, Lower endpoint, Upper endpoint. Enter them in the units and format shown in the calculator.
  • Keep comparable quantities in compatible units whenever the formula combines or compares them.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Interval Notation

Inputs
  • Lower: 0
  • Upper: 5
  • Lower endpoint: closed
  • Upper endpoint: open

Using Lower = 0, Upper = 5, Lower endpoint = closed, Upper endpoint = open, the calculated result is [0, 5).

Sample result: Calculating…

Frequently asked questions

What does the Interval Notation calculate?

Interval Notation — free online calculator.

Which values should I enter?

Enter Lower, Upper, Lower endpoint, Upper endpoint using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Method: Format the lower and upper bounds with [ or ] for closed endpoints and ( or ) for open endpoints..

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026