rounding error
Technical term in computing and numerical analysis for the error introduced by rounding a number to a finite precision.
浮動小数点演算では丸め誤差が生じることがある。
Rounding errors can occur in floating-point arithmetic.
Compound of 丸め (marume, 'rounding') + 誤差 (gosa, 'error'). The derivation is transparent from its components.