## Quick Reference

Certain numbers, notably *π*=3.141 592 6…, *e*=2.718 281… and ‘the golden ratio’ occur repeatedly in the natural world. As pure numbers, their values are independent of the scales used in measurements.

*Subjects:*
Mathematics.

Overview

Achille-Constant-Théodore-Émile Prisse d'Avennes (1807—1879)

Alphonse-Louis Constant (1810—1875)

Benjamin Constant (1767—1830)

concentration equilibrium constant

conditional association constant

Constant (1920—2005)

constant altitude plan position indicator

Constant de Kinder (1863—1943)

constant dropping wears away a stone

constant elasticity of substitution

constant elasticity of variance

Certain numbers, notably *π*=3.141 592 6…, *e*=2.718 281… and ‘the golden ratio’ occur repeatedly in the natural world. As pure numbers, their values are independent of the scales used in measurements.

*Subjects:*
Mathematics.