Understanding 整数 (せいすう)
The word 整数 means "integer," referring to whole numbers without fractions or decimals. It is commonly used in mathematics, programming, and everyday contexts where precise whole numbers are needed.
Usage and Context
When you use 整数, you are specifically talking about numbers like -3, 0, 7, etc., excluding decimals or fractions. It often appears in technical or academic settings but can also be used in casual conversation when discussing numbers.
Common Collocations
- 整数だけ (せいすうだけ): "only integers" — used to specify that only whole numbers are considered.
- 整数の範囲 (せいすうのはんい): "range of integers" — used when defining limits or boundaries involving integers.
- 整数の割り算 (せいすうのわりざん): "integer division" — a mathematical operation where division results in an integer quotient and possibly a remainder.
Tips for Learners
Be careful not to confuse 整数 with 数字 (すうじ), which means "number" in a more general sense and can include decimals and fractions. 整数 is more specific and technical. When talking about whole numbers in math or programming, 整数 is the precise term to use.