Rational
Pronunciation: /ˈræʃ nl/ Explain
A mathematical object is rational if it can be expressed as
a ratio.
- A rational number is a number
that can be expressed as the ratio of two integers.
- A rational equation is an
equation
that has a fraction on one or both sides of the equation. A rational equation is
also called a fractional equation.
- A rational expression is
an expression that contains a ratio of two polynomials.
- A rational function is a function that contains a rational expression.
- A rational root
is a root of a polynomial that is a rational number.
Cite this article as:
McAdams, David E. Rational. 5/5/2011. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/r/rational.html.
Revision History
2/10/2009: Added definition of rational equation. (McAdams, David E.)
2/6/2009: Added rational root to list. (McAdams, David E.)
1/19/2009: Initial version. (McAdams, David E.)