Lưu ý: Bản dịch của mục này hiện đang được kiểm tra chất lượng, vì vậy một số nội dung tạm thời chỉ hiển thị bằng tiếng Anh.
Mục từ này chưa được dịch sang ngôn ngữ của bạn, vì vậy nội dung gốc được hiển thị bên dưới.
imaginary number
This term refers to a specific mathematical entity used to solve equations that have no real number solution, such as the square root of a negative value. It is a technical term of art within mathematics and does not carry the connotation of being "fake" or "made up" in the way the word "imaginary" is used in common conversation.
In a pedagogical context, it is often introduced alongside "real numbers" to form the set of "complex numbers." Users should be careful not to confuse this with a general "imaginary" concept, as in a child's imaginary friend; in this specific phrase, the term is a formal designation for a precise algebraic property.
Ý nghĩa
Ví dụ
An imaginary number is defined as the square root of a negative one multiplied by a real number.
I cannot believe we have to learn about the imaginary number in this basic algebra class.
The solution to this quadratic equation involves an imaginary number.
Wait, so an imaginary number is not actually a real value on the number line?
Electrical engineers use the imaginary number to simplify calculations for alternating current.
Electrical engineers use the imaginary number to simplify calculations for alternating current.
The concept of the imaginary number allows us to solve equations that have no real roots.
He wondered if the imaginary number was just a mathematical trick or a fundamental part of nature.
Quantum mechanics relies heavily on the use of the imaginary number to describe wave functions.