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<!--NewPage--><html><head><!-- Generated by javadoc on Wed Oct 23 13:30:49 EST 1996 --><a name="_top_"></a><title> Class graph.SpecialFunction</title></head><body><pre><a href="packages.html">All Packages</a> <a href="tree.html">Class Hierarchy</a> <a href="Package-graph.html">This Package</a> <a href="graph.ScanWord.html#_top_">Previous</a> <a href="graph.TextLine.html#_top_">Next</a> <a href="AllNames.html">Index</a></pre><hr><h1> Class graph.SpecialFunction</h1><pre><a href="java.lang.Object.html#_top_">java.lang.Object</a> | +----graph.SpecialFunction</pre><hr><dl> <dt> public final class <b>SpecialFunction</b> <dt> extends <a href="java.lang.Object.html#_top_">Object</a></dl>This class contains physical constants and special functions not foundin the java.lang.Math class.Like the java.lang.Math class this class is final and cannot besubclassed.All physical constants are in cgs units.<P><B>NOTE:</B> These special functions do not necessarily use the fastestor most accurate algorithms.<dl> <dt> <b>Version:</b> <dd> 1.7, 1996/08/19 06:04:15 <dt> <b>Author:</b> <dd> Leigh Brookshaw</dl><hr><a name="index"></a><h2> <img src="images/variable-index.gif" width=207 height=38 alt="Variable Index"></h2><dl> <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#AU"><b>AU</b></a> <dd> Astronomical Unit (radius of the Earth's orbit). <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#AVOGADRO"><b>AVOGADRO</b></a> <dd> Avogadro Number. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#BOLTZMAN"><b>BOLTZMAN</b></a> <dd> Boltzman Constant. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#ECHARGE"><b>ECHARGE</b></a> <dd> Elementary Charge. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#EMASS"><b>EMASS</b></a> <dd> Electron Mass. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#GASCONSTANT"><b>GASCONSTANT</b></a> <dd> Gas Constant. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#GRAV"><b>GRAV</b></a> <dd> Gravitational Constant. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#GRAVACC"><b>GRAVACC</b></a> <dd> Gravitational Acceleration at the Earths surface. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#LIGHTSPEED"><b>LIGHTSPEED</b></a> <dd> Speed of Light in a Vacuum. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#PLANCK"><b>PLANCK</b></a> <dd> Planck constant. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#PMASS"><b>PMASS</b></a> <dd> Proton Mass. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#SOLARFLUX"><b>SOLARFLUX</b></a> <dd> Solar Flux. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#SOLARLUM"><b>SOLARLUM</b></a> <dd> Solar Luminosity. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#SOLARMASS"><b>SOLARMASS</b></a> <dd> Solar Mass. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#SOLARRADIUS"><b>SOLARRADIUS</b></a> <dd> Solar Radius. <dt> <img src="images/blue-ball-small.gif" width=6 height=6 alt=" o "> <a href="#STEFANBOLTZ"><b>STEFANBOLTZ</b></a> <dd> Stefan-Boltzman Constant.</dl><h2> <img src="images/method-index.gif" width=207 height=38 alt="Method Index"></h2><dl> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#acosh(double)"><b>acosh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#asinh(double)"><b>asinh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#atanh(double)"><b>atanh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#chisq(double, double)"><b>chisq</b></a>(double, double) <dd> Returns the area under the left hand tail (from 0 to x)of the Chi square probability density function withv degrees of freedom. <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#chisqc(double, double)"><b>chisqc</b></a>(double, double) <dd> Returns the area under the right hand tail (from x toinfinity) of the Chi square probability density functionwith v degrees of freedom: <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#cosh(double)"><b>cosh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#erf(double)"><b>erf</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#erfc(double)"><b>erfc</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#fac(double)"><b>fac</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#fac(int)"><b>fac</b></a>(int) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#gamma(double)"><b>gamma</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#ibeta(double, double, double)"><b>ibeta</b></a>(double, double, double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#igam(double, double)"><b>igam</b></a>(double, double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#igamc(double, double)"><b>igamc</b></a>(double, double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#j0(double)"><b>j0</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#j1(double)"><b>j1</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#jn(int, double)"><b>jn</b></a>(int, double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#log10(double)"><b>log10</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#normal(double)"><b>normal</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#poisson(int, double)"><b>poisson</b></a>(int, double) <dd> Returns the sum of the first k terms of the Poissondistribution. <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#poissonc(int, double)"><b>poissonc</b></a>(int, double) <dd> Returns the sum of the terms k+1 to infinity of the Poissondistribution. <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#sinh(double)"><b>sinh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#tanh(double)"><b>tanh</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#y0(double)"><b>y0</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#y1(double)"><b>y1</b></a>(double) <dd> <dt> <img src="images/green-ball-small.gif" width=6 height=6 alt=" o "> <a href="#yn(int, double)"><b>yn</b></a>(int, double) <dd> </dl><a name="variables"></a><h2> <img src="images/variables.gif" width=153 height=38 alt="Variables"></h2><a name="BOLTZMAN"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>BOLTZMAN</b><pre> public final static double BOLTZMAN</pre><dl> <dd> Boltzman Constant. Units erg/deg(K)</dl><a name="ECHARGE"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>ECHARGE</b><pre> public final static double ECHARGE</pre><dl> <dd> Elementary Charge. Units statcoulomb</dl><a name="EMASS"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>EMASS</b><pre> public final static double EMASS</pre><dl> <dd> Electron Mass. Units g</dl><a name="PMASS"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>PMASS</b><pre> public final static double PMASS</pre><dl> <dd> Proton Mass. Units g</dl><a name="GRAV"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>GRAV</b><pre> public final static double GRAV</pre><dl> <dd> Gravitational Constant. Units dyne-cm^2/g^2</dl><a name="PLANCK"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>PLANCK</b><pre> public final static double PLANCK</pre><dl> <dd> Planck constant. Units erg-sec</dl><a name="LIGHTSPEED"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>LIGHTSPEED</b><pre> public final static double LIGHTSPEED</pre><dl> <dd> Speed of Light in a Vacuum. Units cm/sec</dl><a name="STEFANBOLTZ"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>STEFANBOLTZ</b><pre> public final static double STEFANBOLTZ</pre><dl> <dd> Stefan-Boltzman Constant. Units erg/cm^2-sec-deg^4</dl><a name="AVOGADRO"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>AVOGADRO</b><pre> public final static double AVOGADRO</pre><dl> <dd> Avogadro Number. Units 1/mol</dl><a name="GASCONSTANT"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>GASCONSTANT</b><pre> public final static double GASCONSTANT</pre><dl> <dd> Gas Constant. Units erg/deg-mol</dl><a name="GRAVACC"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>GRAVACC</b><pre> public final static double GRAVACC</pre><dl> <dd> Gravitational Acceleration at the Earths surface. Units cm/sec^2</dl><a name="SOLARMASS"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>SOLARMASS</b><pre> public final static double SOLARMASS</pre><dl> <dd> Solar Mass. Units g</dl><a name="SOLARRADIUS"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>SOLARRADIUS</b><pre> public final static double SOLARRADIUS</pre><dl> <dd> Solar Radius. Units cm</dl><a name="SOLARLUM"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>SOLARLUM</b><pre> public final static double SOLARLUM</pre><dl> <dd> Solar Luminosity. Units erg/sec</dl><a name="SOLARFLUX"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>SOLARFLUX</b><pre> public final static double SOLARFLUX</pre><dl> <dd> Solar Flux. Units erg/cm^2-sec</dl><a name="AU"><img src="images/blue-ball.gif" width=12 height=12 alt=" o "></a><b>AU</b><pre> public final static double AU</pre><dl> <dd> Astronomical Unit (radius of the Earth's orbit). Units cm</dl><a name="methods"></a><h2> <img src="images/methods.gif" width=151 height=38 alt="Methods"></h2><a name="log10(double)"><img src="images/green-ball.gif" width=12 height=12 alt=" o "></a><a name="log10"><b>log10</b></a><pre> public static double log10(double x) throws <a href="java.lang.ArithmeticException.html#_top_">ArithmeticException</a></pre><dl> <dl> <dt> <b>Parameters:</b> <dd> x - a double value <dt> <b>Returns:</b> <dd> The log<sub>10</sub> </dl></dl><a name="cosh(double)"><img src="images/green-ball.gif" width=12 height=12 alt=" o "></a><a name="cosh"><b>cosh</b></a><pre> public static double cosh(double x) throws <a href="java.lang.ArithmeticException.html#_top_">ArithmeticException</a></pre><dl> <dl> <dt> <b>Parameters:</b> <dd> x - a double value <dt> <b>Returns:</b> <dd> the hyperbolic cosine of the argument </dl></dl><a name="sinh(double)"><img src="images/green-ball.gif" width=12 height=12 alt=" o "></a><a name="sinh"><b>sinh</b></a><pre> public static double sinh(double x) throws <a href="java.lang.ArithmeticException.html#_top_">ArithmeticException</a></pre><dl> <dl> <dt> <b>Parameters:</b> <dd> x - a double value <dt> <b>Returns:</b> <dd> the hyperbolic sine of the argument </dl></dl><a name="tanh(double)"><img src="images/green-ball.gif" width=12 height=12 alt=" o "></a><a name="tanh"><b>tanh</b></a><pre> public static double tanh(double x) throws <a href="java.lang.ArithmeticException.html#_top_">ArithmeticException</a></pre>⌨️ 快捷键说明
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