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:
“Nor sequent centuries could hit
Orbit and sum of SHAKSPEARE’s wit.
The men who lived with him became
Poets, for the air was fame.”
—Ralph Waldo Emerson (1803–1882)
“As long as fathers rule but do not nurture, as long as mothers nurture but do not rule, the conditions favoring the development of father-daughter incest will prevail.”
—Judith Lewis Herman (b. 1942)