Improved Steepest Descent Method using Modified Bessel Function K_(1/4 ) for Gamma Function Evaluation
DOI:
https://doi.org/10.15408/fiziya.v4i2.21843Keywords:
Steepest descent method, Stirling formula, gamma functionAbstract
Steepest descent method employs a Gaussian function when approximating an integral of a function. In this article we improve the approximation by using function in the form of . As an example, we approximate the value of gamma function to provide improved approximation for Stirling formula that is often used for estimating factorial of a large number.References
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