org.apache.commons.math3.special.Gamma.invGamma1pm1()方法的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中org.apache.commons.math3.special.Gamma.invGamma1pm1()方法的一些代码示例,展示了Gamma.invGamma1pm1()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Gamma.invGamma1pm1()方法的具体详情如下:
包路径:org.apache.commons.math3.special.Gamma
类名称:Gamma
方法名:invGamma1pm1

Gamma.invGamma1pm1介绍

[英]Returns the value of 1 / Γ(1 + x) - 1 for -0.5 ≤ x ≤ 1.5. This implementation is based on the double precision implementation in the NSWC Library of Mathematics Subroutines, DGAM1.
[中]返回-0.5的值1/Γ(1+x)-1≤ 十、≤ 1.5. 此实现基于NSWC数学子程序库,DGAM1中的双精度实现。

代码示例

代码示例来源:origin: org.apache.commons/commons-math3

/**
 * Returns the value of log Γ(1 + x) for -0.5 ≤ x ≤ 1.5.
 * This implementation is based on the double precision implementation in
 * the <em>NSWC Library of Mathematics Subroutines</em>, {@code DGMLN1}.
 *
 * @param x Argument.
 * @return The value of {@code log(Gamma(1 + x))}.
 * @throws NumberIsTooSmallException if {@code x < -0.5}.
 * @throws NumberIsTooLargeException if {@code x > 1.5}.
 * @since 3.1
 */
public static double logGamma1p(final double x)
  throws NumberIsTooSmallException, NumberIsTooLargeException {
  if (x < -0.5) {
    throw new NumberIsTooSmallException(x, -0.5, true);
  }
  if (x > 1.5) {
    throw new NumberIsTooLargeException(x, 1.5, true);
  }
  return -FastMath.log1p(invGamma1pm1(x));
}

代码示例来源:origin: org.apache.commons/commons-math3

prod *= t;
  ret = prod / (1.0 + invGamma1pm1(t - 1.0));
} else {
    prod *= t;
  ret = 1.0 / (prod * (1.0 + invGamma1pm1(t)));

代码示例来源:origin: geogebra/geogebra

prod *= t;
  ret = prod / (1.0 + invGamma1pm1(t - 1.0));
} else {
    prod *= t;
  ret = 1.0 / (prod * (1.0 + invGamma1pm1(t)));

代码示例来源:origin: geogebra/geogebra

/**
 * Returns the value of log &Gamma;(1 + x) for -0&#46;5 &le; x &le; 1&#46;5.
 * This implementation is based on the double precision implementation in
 * the <em>NSWC Library of Mathematics Subroutines</em>, {@code DGMLN1}.
 *
 * @param x Argument.
 * @return The value of {@code log(Gamma(1 + x))}.
 * @throws NumberIsTooSmallException if {@code x < -0.5}.
 * @throws NumberIsTooLargeException if {@code x > 1.5}.
 * @since 3.1
 */
public static double logGamma1p(final double x)
  throws NumberIsTooSmallException, NumberIsTooLargeException {
  if (x < -0.5) {
    throw new NumberIsTooSmallException(x, -0.5, true);
  }
  if (x > 1.5) {
    throw new NumberIsTooLargeException(x, 1.5, true);
  }
  return -Math.log1p(invGamma1pm1(x));
}

代码示例来源:origin: io.virtdata/virtdata-lib-realer

/**
 * Returns the value of log &Gamma;(1 + x) for -0&#46;5 &le; x &le; 1&#46;5.
 * This implementation is based on the double precision implementation in
 * the <em>NSWC Library of Mathematics Subroutines</em>, {@code DGMLN1}.
 *
 * @param x Argument.
 * @return The value of {@code log(Gamma(1 + x))}.
 * @throws NumberIsTooSmallException if {@code x < -0.5}.
 * @throws NumberIsTooLargeException if {@code x > 1.5}.
 * @since 3.1
 */
public static double logGamma1p(final double x)
  throws NumberIsTooSmallException, NumberIsTooLargeException {
  if (x < -0.5) {
    throw new NumberIsTooSmallException(x, -0.5, true);
  }
  if (x > 1.5) {
    throw new NumberIsTooLargeException(x, 1.5, true);
  }
  return -FastMath.log1p(invGamma1pm1(x));
}

代码示例来源:origin: io.virtdata/virtdata-lib-realer

prod *= t;
  ret = prod / (1.0 + invGamma1pm1(t - 1.0));
} else {
    prod *= t;
  ret = 1.0 / (prod * (1.0 + invGamma1pm1(t)));

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