Translation guide
The English word 'decimal' refers to numbers expressed in base-10, often involving a decimal point. In Japanese, the concept is expressed through specific terms for decimal fractions, the decimal point, and the decimal system.
To refer to a number that includes a decimal point, like 3.14 or 0.5.
The standard term for a decimal fraction. Used in mathematics and everyday contexts.
0.5は小数です。
0.5 is a decimal.
Specifically refers to the decimal point itself, not the number.
小数点を右に移動する。
Move the decimal point to the right.
To refer to the base-10 number system as a whole.
The formal term for the decimal numeral system.
コンピューターは十進法を使わない。
Computers don't use the decimal system.
Refers to a decimal number in the context of numeral systems.
十進数を二進数に変換する。
Convert a decimal number to binary.
To talk about digits after the decimal point, like tenths, hundredths.
Pattern for specifying decimal places. Insert the place number (e.g., 1 for tenths, 2 for hundredths).
小数第一位は3です。
The first decimal place is 3.
In Japanese, decimal numbers are read digit by digit after the decimal point. The decimal point is read as てん. For example, 3.14 is さんてんいちよん.