Last Updated
：2025/11/29
Dirac delta
Noun
Japanese Meaning
数学におけるディラック・デルタ関数。これは、記号δを用いて表され、積分において∫f(t)δ(x-t)dt=f(x)という性質を持つ。直感的には、0以外では値が0で、0において無限大の値を持つとみなされ、厳密には分布または測度として扱われる概念である。
（ plural ）
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(mathematics) A function-like symbol denoted as δ, with the property ∫f(t)𝛿(x-t)dt=f(x), informally understood as a function with an infinite value at 0 and zero elsewhere, and formally as a distribution or a measure.
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Dirac delta
In signal processing, the Dirac delta is used to model an ideal impulse that samples a continuous signal at a single point.
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In signal processing, the Dirac delta is used to model an ideal impulse that samples a continuous signal at a single point.
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