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 expression is
an expression that contains a ratio of two polynomials.
- A rational function
is a function that contains a rational expression. A rational function is
also called a fractional equation.
- A rational root
is a root of a polynomial that is a rational number.
- McAdams, David E.. All Math Words Dictionary, rational. 2nd Classroom edition 20150108-4799968. pg 150. Life is a Story Problem LLC. January 8, 2015. Buy the book
Cite this article as:
McAdams, David E. Rational. 3/28/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/r/rational.html.
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
12/5/2018: Removed broken links, updated license, implemented new markup. (McAdams, David E.)
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.)