I
Statement of equality between two expressions consisting of variables and/or numbers.
In essence, equations are questions, and the development of mathematics has been driven by attempts to find answers to those questions in a systematic way. Equations vary in complexity from simple differential equations , exponential equations (involving exponential expressions), and integral equations . They are used to express many of the laws of physics . See also system of equations .
II
[c mediumvioletred] (as used in expressions)
algebraic equation
chemical equation
continuity equation
difference equation
differential equation
Drake equation
Green Bank equation
integral equation
Laplace's equation
motion equation of
ordinary differential equation
partial differential equation
quadratic equation
Schrödinger equation
state equation of
Maxwell's equations
system of equations
{{link=simultaneous equations">simultaneous equations