Sum rule may refer to:
- Sum rule in differentiation
- Sum rule in integration
- Rule of sum, a counting principle in combinatorics
- The sum rule in probability theory follows directly from the probability axioms
- Sum rule in quantum mechanics
Famous quotes containing the words sum and/or rule:
“The real risks for any artist are taken ... in pushing the work to the limits of what is possible, in the attempt to increase the sum of what it is possible to think. Books become good when they go to this edge and risk falling over it—when they endanger the artist by reason of what he has, or has not, artistically dared.”
—Salman Rushdie (b. 1947)
“... people with heavy physical vibrations rule the world.”
—Margaret Anderson (1886–1973)