tạp số
Definition
- Noun (Mathematics):
- Compound Number / Denominate Number: A number that expresses a quantity in terms of two or more different, non-decimal units of measurement. It is a single quantity composed of a combination of smaller, often irregular, units (e.g., hours, minutes, seconds; feet and inches; pounds and ounces).
Usage Examples
- Noun:
- "3 giờ 15 phút" là một tạp số. ("3 hours 15 minutes" is a compound number.)
- Trong bài toán này, bạn cần chuyển đổi tạp số thành một đơn vị duy nhất. (In this problem, you need to convert the denominate number into a single unit.)
Advanced Usage
- The concept is primarily used in arithmetic and practical measurements. The key characteristic is the use of mixed, non-decimal units within one quantity.
Variants and Related Words
- Số đơn (n): Simple number; a number expressed in a single, standard unit (e.g., 185 minutes).
- Đổi đơn vị (v): To convert units.
Synonyms
- Denominate number
- Compound number
- Mixed-unit quantity
Related Concepts
- Unit Conversion: The mathematical process of changing a compound number from one set of units to another.
- Để cộng hai tạp số, trước tiên phải thực hiện chuyển đổi đơn vị. (To add two compound numbers, you must first perform unit conversion.)
- Time Measurement: A common domain for compound numbers (hours, minutes, seconds).
- Imperial/Customary Units: Systems that frequently use compound numbers (e.g., length: 5 feet 7 inches).