noun
truncation error
Computing term for the error introduced when an infinite process is cut off after a finite number of steps, such as in numerical series or digital signal processing.
数値計算では、打ち切り誤差を小さくするために高次の項まで計算する。
In numerical computation, higher-order terms are calculated to reduce truncation error.
Standard kanji spelling for this computing term.
Variant with simplified okurigana; less common but still seen.
丸め誤差 is rounding error from representing numbers with finite precision, while 打ち切り誤差 is truncation error from stopping an infinite process early.
Compound of 打ち切り (truncation, cutting off) and 誤差 (error). The term is a direct calque from English 'truncation error'.