Tìm kiếm
Real number
01
số thực
any number that can be found on the number line, including both positive and negative numbers, zero, and fractions
Ví dụ
The eigenvalues of a symmetric matrix are always real numbers.
= 2x maps every real number x to its double.
The interval notation (−∞, 5) represents all real numbers less than 5, excluding 5 itself.
The interval (a, b), where a and b are real numbers, represents all numbers between a and b but excludes the endpoints.
