cc8e300bae
See: http://www.advanpix.com/2015/11/11/rational-approximations-for-the-modified-bessel-function-of-the-first-kind-i0-computations-double-precision/
75 lines
1.6 KiB
XML
75 lines
1.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd" [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]>
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head><title>bessel17</title>
|
|
<!-- MathML created with MathCast Equation Editor version 0.92 -->
|
|
</head>
|
|
<body>
|
|
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
|
|
<mrow>
|
|
<msub>
|
|
<mi>I</mi>
|
|
<mn>1</mn>
|
|
</msub>
|
|
<mfenced>
|
|
<mrow>
|
|
<mi>x</mi>
|
|
</mrow>
|
|
</mfenced>
|
|
<mo>≈</mo>
|
|
<mfrac>
|
|
<mi>x</mi>
|
|
<mn>2</mn>
|
|
</mfrac>
|
|
<mfenced>
|
|
<mrow>
|
|
<mn>1</mn>
|
|
<mo>+</mo>
|
|
<mfrac>
|
|
<mn>1</mn>
|
|
<mn>2</mn>
|
|
</mfrac>
|
|
<mo>[</mo>
|
|
<mfrac>
|
|
<mi>x</mi>
|
|
<mn>2</mn>
|
|
</mfrac>
|
|
<msup>
|
|
<mo>]</mo>
|
|
<mn>2</mn>
|
|
</msup>
|
|
<mo>+</mo>
|
|
<mo>[</mo>
|
|
<mfrac>
|
|
<mi>x</mi>
|
|
<mn>2</mn>
|
|
</mfrac>
|
|
<msup>
|
|
<mo>]</mo>
|
|
<mn>4</mn>
|
|
</msup>
|
|
<mi>P</mi>
|
|
<mfenced>
|
|
<mrow>
|
|
<mo>[</mo>
|
|
<mfrac>
|
|
<mi>x</mi>
|
|
<mn>2</mn>
|
|
</mfrac>
|
|
<msup>
|
|
<mo>]</mo>
|
|
<mn>2</mn>
|
|
</msup>
|
|
</mrow>
|
|
</mfenced>
|
|
</mrow>
|
|
</mfenced>
|
|
<mspace width="1.0em"/>
|
|
<mo>;</mo>
|
|
<mspace width="1.0em"/>
|
|
<mi>x</mi>
|
|
<mo><</mo>
|
|
<mn>7.75</mn>
|
|
</mrow>
|
|
</math></body>
|
|
</html> |