Révisi nurutkeun 24 Agustus 2004 02.58 édit Budhi (obrolan \| kontribusi) 5.857 suntingan Tidak ada ringkasan suntingan ← Éditan saméméhna		Révisi nurutkeun 24 Désémber 2004 21.38 édit bolaykeun Budhi (obrolan \| kontribusi) 5.857 suntingan mTidak ada ringkasan suntingan Éditan salajengna →
Baris ka-5: <div style="float:right;margin-left:5px;text-align:center;padding-left:10px">[[Image:HeavisideStepFunction.png\|The Heaviside step function]]</div> '''Fungsi Heaviside step''', ngaran nu dipake keur ngahargaan [[Oliver Heaviside]], is a [[continuous\|discontinuous]] [[~~function~~Fungsi (~~mathematics~~matematik)\|function]] whose value is [[zero]] for negative inputs and [[one]] elsewhere: :<math>H(x)=\left\{\begin{matrix} 0 : x < 0 \\ 1 : x \ge 0 \end{matrix}\right. </math> The function is used in the mathematics of [[signal processing]] to represent a signal that switches on at a specified time and stays switched on indefinitely. Its [[derivative]] is formally the [[Dirac delta function]]. It is the [[cumulative distribution function]] of a [[~~random~~variabel ~~variable~~acak]] which is [[almost surely]] 0. (See [[constant random variable]].) The Heaviside function is the integral of the [[Dirac delta function]]. The value of H(0) is of very little importance, since the function is often used within an [[integration\|integral]]. Some writers give H(0) = 0, some H(0) = 1. H(0) = 0.5 is often used, since it maximizes the [[symmetry]] of the function. This makes the definition:

Fungsi Heaviside step: Béda antarrépisi