http://commons.apache.org/proper/commons-math/: The Apache Commons Math project is a library of lightweight, self-contained mathematics and statistics components addressing the most common practical problems not immediately available in the Java programming language or commons-lang. (The Apache Software Foundation)
  • Eldar Agalarov
  • Tim Allison
  • C. Scott Ananian
  • Mark Anderson
  • Peter Andrews
  • Rémi Arntzen
  • Matt Adereth
  • Jared Becksfort
  • Michael Bjorkegren
  • Brian Bloniarz
  • John Bollinger
  • Cyril Briquet
  • Dave Brosius
  • Dan Checkoway
  • Anders Conbere
  • Charles Cooper
  • Paul Cowan
  • Benjamin Croizet
  • Larry Diamond
  • Aleksei Dievskii
  • Rodrigo di Lorenzo Lopes
  • Hasan Diwan
  • Ted Dunning
  • Ole Ersoy
  • Ajo Fod
  • John Gant
  • Ken Geis
  • Hank Grabowski
  • Bernhard Grünewaldt
  • Elliotte Rusty Harold
  • Dennis Hendriks
  • Reid Hochstedler
  • Matthias Hummel
  • Curtis Jensen
  • Bruce A Johnson
  • Ismael Juma
  • Eugene Kirpichov
  • Oleksandr Kornieiev
  • Piotr Kochanski
  • Sergei Lebedev
  • Bob MacCallum
  • Jake Mannix
  • Benjamin McCann
  • Patrick Meyer
  • J. Lewis Muir
  • Venkatesha Murthy
  • Christopher Nix
  • Fredrik Norin
  • Sean Owen
  • Sujit Pal
  • Todd C. Parnell
  • Andreas Rieger
  • Sébastien Riou
  • Bill Rossi
  • Matthew Rowles
  • Pavel Ryzhov
  • Joni Salonen
  • Michael Saunders
  • Thorsten Schaefer
  • Christopher Schuck
  • Christian Semrau
  • David Stefka
  • Mauro Talevi
  • Radoslav Tsvetkov
  • Kim van der Linde
  • Alexey Volkov
  • Andrew Waterman
  • Jörg Weimar
  • Christian Winter
  • Piotr Wydrych
  • Xiaogang Zhang
  • Chris Popp
  • Mikkel Meyer Andersen
  • Bill Barker
  • Sébastien Brisard
  • Albert Davidson Chou
  • Mark Diggory
  • Robert Burrell Donkin
  • Otmar Ertl
  • Luc Maisonobe
  • Tim O'Brien
  • J. Pietschmann
  • Dimitri Pourbaix
  • Gilles Sadowski
  • Greg Sterijevski
  • Brent Worden
  • Thomas Neidhart
  • Evan Ward 
public class org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator extends org.apache.commons.math3.analysis.integration.BaseAbstractUnivariateIntegrator
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator
  super_class: org.apache.commons.math3.analysis.integration.BaseAbstractUnivariateIntegrator
{
  private static final org.apache.commons.math3.analysis.integration.gauss.GaussIntegratorFactory FACTORY;
    descriptor: Lorg/apache/commons/math3/analysis/integration/gauss/GaussIntegratorFactory;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final int numberOfPoints;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 51
            new org.apache.commons.math3.analysis.integration.gauss.GaussIntegratorFactory
            dup
            invokespecial org.apache.commons.math3.analysis.integration.gauss.GaussIntegratorFactory.<init>:()V
         1: .line 50
            putstatic org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.FACTORY:Lorg/apache/commons/math3/analysis/integration/gauss/GaussIntegratorFactory;
         2: .line 51
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(int, double, double, int, int);
    descriptor: (IDDII)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=8, args_size=6
        start local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
        start local 1 // int n
        start local 2 // double relativeAccuracy
        start local 4 // double absoluteAccuracy
        start local 6 // int minimalIterationCount
        start local 7 // int maximalIterationCount
         0: .line 74
            aload 0 /* this */
            dload 2 /* relativeAccuracy */
            dload 4 /* absoluteAccuracy */
            iload 6 /* minimalIterationCount */
            iload 7 /* maximalIterationCount */
            invokespecial org.apache.commons.math3.analysis.integration.BaseAbstractUnivariateIntegrator.<init>:(DDII)V
         1: .line 75
            iload 1 /* n */
            ifgt 3
         2: .line 76
            new org.apache.commons.math3.exception.NotStrictlyPositiveException
            dup
            getstatic org.apache.commons.math3.exception.util.LocalizedFormats.NUMBER_OF_POINTS:Lorg/apache/commons/math3/exception/util/LocalizedFormats;
            iload 1 /* n */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokespecial org.apache.commons.math3.exception.NotStrictlyPositiveException.<init>:(Lorg/apache/commons/math3/exception/util/Localizable;Ljava/lang/Number;)V
            athrow
         3: .line 78
      StackMap locals: org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator int double double int int
      StackMap stack:
            aload 0 /* this */
            iload 1 /* n */
            putfield org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.numberOfPoints:I
         4: .line 79
            return
        end local 7 // int maximalIterationCount
        end local 6 // int minimalIterationCount
        end local 4 // double absoluteAccuracy
        end local 2 // double relativeAccuracy
        end local 1 // int n
        end local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
      LocalVariableTable:
        Start  End  Slot                   Name  Signature
            0    5     0                   this  Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;
            0    5     1                      n  I
            0    5     2       relativeAccuracy  D
            0    5     4       absoluteAccuracy  D
            0    5     6  minimalIterationCount  I
            0    5     7  maximalIterationCount  I
    Exceptions:
      throws org.apache.commons.math3.exception.NotStrictlyPositiveException, org.apache.commons.math3.exception.NumberIsTooSmallException
    MethodParameters:
                       Name  Flags
      n                      final
      relativeAccuracy       final
      absoluteAccuracy       final
      minimalIterationCount  final
      maximalIterationCount  final

  public void <init>(int, double, double);
    descriptor: (IDD)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=6, args_size=4
        start local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
        start local 1 // int n
        start local 2 // double relativeAccuracy
        start local 4 // double absoluteAccuracy
         0: .line 93
            aload 0 /* this */
            iload 1 /* n */
            dload 2 /* relativeAccuracy */
            dload 4 /* absoluteAccuracy */
         1: .line 94
            iconst_3
            ldc 2147483647
            invokespecial org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.<init>:(IDDII)V
         2: .line 95
            return
        end local 4 // double absoluteAccuracy
        end local 2 // double relativeAccuracy
        end local 1 // int n
        end local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    3     0              this  Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;
            0    3     1                 n  I
            0    3     2  relativeAccuracy  D
            0    3     4  absoluteAccuracy  D
    Exceptions:
      throws org.apache.commons.math3.exception.NotStrictlyPositiveException
    MethodParameters:
                  Name  Flags
      n                 final
      relativeAccuracy  final
      absoluteAccuracy  final

  public void <init>(int, int, int);
    descriptor: (III)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=4, args_size=4
        start local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
        start local 1 // int n
        start local 2 // int minimalIterationCount
        start local 3 // int maximalIterationCount
         0: .line 113
            aload 0 /* this */
            iload 1 /* n */
            ldc 1.0E-6
            ldc 1.0E-15
         1: .line 114
            iload 2 /* minimalIterationCount */
            iload 3 /* maximalIterationCount */
            invokespecial org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.<init>:(IDDII)V
         2: .line 115
            return
        end local 3 // int maximalIterationCount
        end local 2 // int minimalIterationCount
        end local 1 // int n
        end local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
      LocalVariableTable:
        Start  End  Slot                   Name  Signature
            0    3     0                   this  Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;
            0    3     1                      n  I
            0    3     2  minimalIterationCount  I
            0    3     3  maximalIterationCount  I
    Exceptions:
      throws org.apache.commons.math3.exception.NotStrictlyPositiveException, org.apache.commons.math3.exception.NumberIsTooSmallException
    MethodParameters:
                       Name  Flags
      n                      final
      minimalIterationCount  final
      maximalIterationCount  final

  protected double doIntegrate();
    descriptor: ()D
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=8, locals=12, args_size=1
        start local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
         0: .line 122
            aload 0 /* this */
            iconst_1
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.stage:(I)D
            dstore 1 /* oldt */
        start local 1 // double oldt
         1: .line 124
            iconst_2
            istore 3 /* n */
        start local 3 // int n
         2: .line 127
      StackMap locals: double int
      StackMap stack:
            aload 0 /* this */
            iload 3 /* n */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.stage:(I)D
            dstore 4 /* t */
        start local 4 // double t
         3: .line 130
            dload 4 /* t */
            dload 1 /* oldt */
            dsub
            invokestatic org.apache.commons.math3.util.FastMath.abs:(D)D
            dstore 6 /* delta */
        start local 6 // double delta
         4: .line 132
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getAbsoluteAccuracy:()D
         5: .line 133
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getRelativeAccuracy:()D
            dload 1 /* oldt */
            invokestatic org.apache.commons.math3.util.FastMath.abs:(D)D
            dload 4 /* t */
            invokestatic org.apache.commons.math3.util.FastMath.abs:(D)D
            dadd
            dmul
            ldc 0.5
            dmul
         6: .line 132
            invokestatic org.apache.commons.math3.util.FastMath.max:(DD)D
         7: .line 131
            dstore 8 /* limit */
        start local 8 // double limit
         8: .line 136
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getIterations:()I
            iconst_1
            iadd
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getMinimalIterationCount:()I
            if_icmplt 11
         9: .line 137
            dload 6 /* delta */
            dload 8 /* limit */
            dcmpg
            ifgt 11
        10: .line 138
            dload 4 /* t */
            dreturn
        11: .line 142
      StackMap locals: double double double
      StackMap stack:
            ldc 4.0
            dload 6 /* delta */
            dload 8 /* limit */
            ddiv
            ldc 0.5
            aload 0 /* this */
            getfield org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.numberOfPoints:I
            i2d
            ddiv
            invokestatic org.apache.commons.math3.util.FastMath.pow:(DD)D
            invokestatic org.apache.commons.math3.util.FastMath.min:(DD)D
            dstore 10 /* ratio */
        start local 10 // double ratio
        12: .line 143
            dload 10 /* ratio */
            iload 3 /* n */
            i2d
            dmul
            d2i
            iload 3 /* n */
            iconst_1
            iadd
            invokestatic org.apache.commons.math3.util.FastMath.max:(II)I
            istore 3 /* n */
        13: .line 144
            dload 4 /* t */
            dstore 1 /* oldt */
        14: .line 145
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.incrementCount:()V
        end local 10 // double ratio
        end local 8 // double limit
        end local 6 // double delta
        end local 4 // double t
        15: .line 125
            goto 2
        end local 3 // int n
        end local 1 // double oldt
        end local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   16     0   this  Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;
            1   16     1   oldt  D
            2   16     3      n  I
            3   15     4      t  D
            4   15     6  delta  D
            8   15     8  limit  D
           12   15    10  ratio  D
    Exceptions:
      throws org.apache.commons.math3.exception.MathIllegalArgumentException, org.apache.commons.math3.exception.TooManyEvaluationsException, org.apache.commons.math3.exception.MaxCountExceededException

  private double stage(int);
    descriptor: (I)D
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=17, args_size=2
        start local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
        start local 1 // int n
         0: .line 160
            new org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator$1
            dup
            aload 0 /* this */
            invokespecial org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator$1.<init>:(Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;)V
            astore 2 /* f */
        start local 2 // org.apache.commons.math3.analysis.UnivariateFunction f
         1: .line 168
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getMin:()D
            dstore 3 /* min */
        start local 3 // double min
         2: .line 169
            aload 0 /* this */
            invokevirtual org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.getMax:()D
            dstore 5 /* max */
        start local 5 // double max
         3: .line 170
            dload 5 /* max */
            dload 3 /* min */
            dsub
            iload 1 /* n */
            i2d
            ddiv
            dstore 7 /* step */
        start local 7 // double step
         4: .line 172
            dconst_0
            dstore 9 /* sum */
        start local 9 // double sum
         5: .line 173
            iconst_0
            istore 11 /* i */
        start local 11 // int i
         6: goto 12
         7: .line 175
      StackMap locals: org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator int org.apache.commons.math3.analysis.UnivariateFunction double double double double int
      StackMap stack:
            dload 3 /* min */
            iload 11 /* i */
            i2d
            dload 7 /* step */
            dmul
            dadd
            dstore 12 /* a */
        start local 12 // double a
         8: .line 176
            dload 12 /* a */
            dload 7 /* step */
            dadd
            dstore 14 /* b */
        start local 14 // double b
         9: .line 177
            getstatic org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.FACTORY:Lorg/apache/commons/math3/analysis/integration/gauss/GaussIntegratorFactory;
            aload 0 /* this */
            getfield org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator.numberOfPoints:I
            dload 12 /* a */
            dload 14 /* b */
            invokevirtual org.apache.commons.math3.analysis.integration.gauss.GaussIntegratorFactory.legendreHighPrecision:(IDD)Lorg/apache/commons/math3/analysis/integration/gauss/GaussIntegrator;
            astore 16 /* g */
        start local 16 // org.apache.commons.math3.analysis.integration.gauss.GaussIntegrator g
        10: .line 178
            dload 9 /* sum */
            aload 16 /* g */
            aload 2 /* f */
            invokevirtual org.apache.commons.math3.analysis.integration.gauss.GaussIntegrator.integrate:(Lorg/apache/commons/math3/analysis/UnivariateFunction;)D
            dadd
            dstore 9 /* sum */
        end local 16 // org.apache.commons.math3.analysis.integration.gauss.GaussIntegrator g
        end local 14 // double b
        end local 12 // double a
        11: .line 173
            iinc 11 /* i */ 1
      StackMap locals:
      StackMap stack:
        12: iload 11 /* i */
            iload 1 /* n */
            if_icmplt 7
        end local 11 // int i
        13: .line 181
            dload 9 /* sum */
            dreturn
        end local 9 // double sum
        end local 7 // double step
        end local 5 // double max
        end local 3 // double min
        end local 2 // org.apache.commons.math3.analysis.UnivariateFunction f
        end local 1 // int n
        end local 0 // org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   14     0  this  Lorg/apache/commons/math3/analysis/integration/IterativeLegendreGaussIntegrator;
            0   14     1     n  I
            1   14     2     f  Lorg/apache/commons/math3/analysis/UnivariateFunction;
            2   14     3   min  D
            3   14     5   max  D
            4   14     7  step  D
            5   14     9   sum  D
            6   13    11     i  I
            8   11    12     a  D
            9   11    14     b  D
           10   11    16     g  Lorg/apache/commons/math3/analysis/integration/gauss/GaussIntegrator;
    Exceptions:
      throws org.apache.commons.math3.exception.TooManyEvaluationsException
    MethodParameters:
      Name  Flags
      n     final
}
SourceFile: "IterativeLegendreGaussIntegrator.java"
NestMembers:
  org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator$1
InnerClasses:
  org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator$1