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Jens True
2024-02-26 09:43:53 +00:00
parent 3a14da5388
commit 49953d1329
1 changed files with 4 additions and 3 deletions
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7
src/Numerics/GaussianDistribution.php
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@ -16,7 +16,7 @@ class GaussianDistribution implements \Stringable
* Square Root 2π. * Square Root 2π.
* Precalculated constant for performance reasons * Precalculated constant for performance reasons
* sqrt(2*pi) * sqrt(2*pi)
* from https://www.wolframalpha.com/input?i=sqrt%282*pi%29 * @link https://www.wolframalpha.com/input?i=sqrt%282*pi%29 Source of value
*/ */
private const M_SQRT_2_PI = 2.5066282746310005024157652848110452530069867406099383166299235763; private const M_SQRT_2_PI = 2.5066282746310005024157652848110452530069867406099383166299235763;
@ -24,7 +24,7 @@ class GaussianDistribution implements \Stringable
* Log of Square Root 2π. * Log of Square Root 2π.
* Precalculated constant for performance reasons * Precalculated constant for performance reasons
* log(sqrt(2*pi)) * log(sqrt(2*pi))
* From https://www.wolframalpha.com/input?i=log%28sqrt%282*pi%29%29 * @link https://www.wolframalpha.com/input?i=log%28sqrt%282*pi%29%29 Source of value
*/ */
private const M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404; private const M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404;
@ -76,7 +76,8 @@ class GaussianDistribution implements \Stringable
} }
/** /**
* Great derivation of this is at http://www.astro.psu.edu/~mce/A451_2/A451/downloads/notes0.pdf * Great derivation of this is at
* @link http://www.astro.psu.edu/~mce/A451_2/A451/downloads/notes0.pdf
*/ */
public function getNormalizationConstant(): float public function getNormalizationConstant(): float
{ {