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→Relationship with Diract delta: title misspelled "Dirac" |
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<math display="block"> H(x) = \frac{x + |x|}{2x} \,.</math>
==Relationship with
The [[Dirac delta function]] is the [[derivative]] of the Heaviside function:
<math display="block">\delta(x)= \frac{d}{dx} H(x).</math>
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