If you ask me define Dirac delta function, i can easily define it and prove its properties using laplacian or complex analysis method. But still i dont understand what is the use of DIRAC DELTA FUNCTION in quantum mechanics. As i have done some reading Quantum mechanics from Introduction to Quantum mechanics By griffiths (completed 1st chapter only) but still i havent see a word like delta function. Please help.(adsbygoogle = window.adsbygoogle || []).push({});

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# Use of dirac delta function

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