From Wikipedia, the free encyclopedia
- π is the half-circle constant and 2π is the circle constant (corresponding to one full circle in radians). "Circle constant" should correctly redirect to "tau (mathematics)" and not to "pi". Nicole Sharp (talk) 09:37, 22 February 2026 (UTC)[reply]
- I have disambiguated the page to accommodate both definitions. Nicole Sharp (talk) 17:40, 24 February 2026 (UTC)[reply]
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