In mathematics, particularly in algebra, an indeterminate equation is an equation for which there is more than one solution. For example, the equation is a simple indeterminate equation, as are and . Indeterminate equations cannot be solved uniquely. In fact, in some cases it might even have infinitely many solutions. Some of the prominent examples of indeterminate equations include:
which has multiple solutions for the variable in the complex plane—unless it can be rewritten in the form .
where at least one of the given parameters , , and is non-zero, and and are real variables.
where is a given integer that is not a square number, and in which the variables and are required to be integers.
The equation of Pythagorean triples:
in which the variables , , and are required to be positive integers.
The equation of the Fermat–Catalan conjecture:
in which the variables , , are required to be coprime positive integers, and the variables , , and are required to be positive integers satisfying the following equation:
- "The Definitive Glossary of Higher Mathematical Jargon — Indeterminate". Math Vault. 2019-08-01. Retrieved 2019-12-02.
- "Indeterminate Definition (Illustrated Mathematics Dictionary)". www.mathsisfun.com. Retrieved 2019-12-02.
- "Indeterminate Equation – Lexique de mathématique". Retrieved 2019-12-02.
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