Integral of e^-(constant)x^2

  • Thread starter Kristen
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  • #1
Kristen
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Need the integral of e^-(constant)x^2...don't want to use guass integral trick
 

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  • #2
Ambitwistor
841
1
Here is a thread that discusses various ways for evaluating Gaussian integrals,

http://www.nrich.maths.org/askedNRICH/edited/2171.html

but the equations may not come across on your browser.
 
  • #3
mathman
Science Advisor
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The indefinite integral cannot be expressed in simple form. Usually it is given in terms of a function called "erf", which is simply a standard form (constant=1/2) integral.
 

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