KnowraReciprocalLinked fromLinked fromThe 9 pages that link to Reciprocal, each with the reason it gives.All 9Broader topic 1Related 5Narrower topic 2Compared with 1Babylonian mathematicsRelated: Reciprocal tables let scribes replace many divisions with multiplication.SexagesimalRelated: Babylonian computation benefited from terminating sexagesimal expansions of reciprocals of factors of 60.Harmonic meanBroader topic: Taking reciprocals twice is the defining operation behind the harmonic mean.Nesbitt's inequalityNarrower topic: The inequality pairs the sum of the variables with the sum of their reciprocals.Descartes' theoremRelated: Taking reciprocal radii turns circle sizes into the curvatures used in the formula.Nth rootCompared with: Taking a reciprocal reverses multiplication, whereas taking a root reverses a power.Erdős–Straus conjectureRelated: The equation expresses 4/n as a sum of reciprocals of integers.Erdős–Graham problemNarrower topic: Each chosen integer contributes its reciprocal to the sum tested by the problem.Inverse secondRelated: An inverse second is the reciprocal of one second.