Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
real number
This term refers to the complete set of values on a continuous number line, bridging the gap between discrete integers and the gaps left by rational numbers. It is a foundational concept in calculus and analysis, providing the mathematical framework for continuity and limits.
In a pedagogical context, it is often contrasted with complex numbers, which include an imaginary unit. While a real number can be plotted on a single axis, complex numbers require a two-dimensional plane.
Meanings
Examples
Every real number can be represented as a point on a number line.
The solution to this equation must be a real number.
I wonder if there is a real number between these two values.
The set of all real numbers includes both rational and irrational values.
We are only dealing with real numbers in this chapter.
The variable x represents any real number greater than zero.
A real number is any value that does not contain an imaginary unit.