Tool Profile

Interval Calculator

A calculator for interval arithmetic over disjoint sets that tries to preserve the inclusion property.

Open source Latest HN thread

Why developers recommend it

Commenters liked the math angle and suggested related interval-visualization tools.

Reference ID

interval-calculator

Hacker News Mentions

2026-04-18

The author explained the inclusion-property approach, and another commenter called it great while linking a related interval arithmetic graphing calculator.

Show HN: I made a calculator that works over disjoint sets of intervals

Issue HN thread