noun
fixed-point arithmetic
Computing term for arithmetic operations on numbers with a fixed number of digits after the radix point, as opposed to floating-point arithmetic.
組み込みシステムでは、固定小数点演算がよく使われる。
Fixed-point arithmetic is often used in embedded systems.
Floating-point arithmetic, where the decimal point can 'float' to represent a wider range of values, in contrast to the fixed precision of 固定小数点演算.
Compound of 固定 (fixed) + 小数点 (decimal point) + 演算 (arithmetic). A calque from English 'fixed-point arithmetic'.