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fix dot to mult
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@ -58,7 +58,7 @@ final class KernelsND
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$cov = $bandwithMatrix->mult($identityMatrix);
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/** @phpstan-ignore-next-line */
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$exponent = $distnaceMatrix->dot($cov->inverse())->mult($distnaceMatrix)->sum(1)->mult(-0.5);
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$exponent = $distnaceMatrix->mult($cov->inverse())->mult($distnaceMatrix)->sum(1)->mult(-0.5);
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return $exponent->exp()->mult((1 / \pow(2 * \M_PI, $dim / 2)) * \pow($cov->det(), 0.5))->matrix;
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}
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