org.apache.commons/commons-math3/3.6.1 : org/apache/commons/math3/transform/FastSineTransformer.class

FastSineTransformer
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)
Apache License, Version 2.0
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.transform.FastSineTransformer implements org.apache.commons.math3.transform.RealTransformer, java.io.Serializable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.commons.math3.transform.FastSineTransformer
  super_class: java.lang.Object
{
  static final long serialVersionUID;
    descriptor: J
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: 20120211

  private final org.apache.commons.math3.transform.DstNormalization normalization;
    descriptor: Lorg/apache/commons/math3/transform/DstNormalization;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.apache.commons.math3.transform.DstNormalization);
    descriptor: (Lorg/apache/commons/math3/transform/DstNormalization;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.commons.math3.transform.FastSineTransformer this
        start local 1 // org.apache.commons.math3.transform.DstNormalization normalization
         0: .line 83
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 84
            aload 0 /* this */
            aload 1 /* normalization */
            putfield org.apache.commons.math3.transform.FastSineTransformer.normalization:Lorg/apache/commons/math3/transform/DstNormalization;
         2: .line 85
            return
        end local 1 // org.apache.commons.math3.transform.DstNormalization normalization
        end local 0 // org.apache.commons.math3.transform.FastSineTransformer this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    3     0           this  Lorg/apache/commons/math3/transform/FastSineTransformer;
            0    3     1  normalization  Lorg/apache/commons/math3/transform/DstNormalization;
    MethodParameters:
               Name  Flags
      normalization  final

  public double[] transform(double[], org.apache.commons.math3.transform.TransformType);
    descriptor: ([DLorg/apache/commons/math3/transform/TransformType;)[D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=3
        start local 0 // org.apache.commons.math3.transform.FastSineTransformer this
        start local 1 // double[] f
        start local 2 // org.apache.commons.math3.transform.TransformType type
         0: .line 96
            aload 0 /* this */
            getfield org.apache.commons.math3.transform.FastSineTransformer.normalization:Lorg/apache/commons/math3/transform/DstNormalization;
            getstatic org.apache.commons.math3.transform.DstNormalization.ORTHOGONAL_DST_I:Lorg/apache/commons/math3/transform/DstNormalization;
            if_acmpne 3
         1: .line 97
            ldc 2.0
            aload 1 /* f */
            arraylength
            i2d
            ddiv
            invokestatic org.apache.commons.math3.util.FastMath.sqrt:(D)D
            dstore 3 /* s */
        start local 3 // double s
         2: .line 98
            aload 0 /* this */
            aload 1 /* f */
            invokevirtual org.apache.commons.math3.transform.FastSineTransformer.fst:([D)[D
            dload 3 /* s */
            invokestatic org.apache.commons.math3.transform.TransformUtils.scaleArray:([DD)[D
            areturn
        end local 3 // double s
         3: .line 100
      StackMap locals:
      StackMap stack:
            aload 2 /* type */
            getstatic org.apache.commons.math3.transform.TransformType.FORWARD:Lorg/apache/commons/math3/transform/TransformType;
            if_acmpne 5
         4: .line 101
            aload 0 /* this */
            aload 1 /* f */
            invokevirtual org.apache.commons.math3.transform.FastSineTransformer.fst:([D)[D
            areturn
         5: .line 103
      StackMap locals:
      StackMap stack:
            ldc 2.0
            aload 1 /* f */
            arraylength
            i2d
            ddiv
            dstore 3 /* s */
        start local 3 // double s
         6: .line 104
            aload 0 /* this */
            aload 1 /* f */
            invokevirtual org.apache.commons.math3.transform.FastSineTransformer.fst:([D)[D
            dload 3 /* s */
            invokestatic org.apache.commons.math3.transform.TransformUtils.scaleArray:([DD)[D
            areturn
        end local 3 // double s
        end local 2 // org.apache.commons.math3.transform.TransformType type
        end local 1 // double[] f
        end local 0 // org.apache.commons.math3.transform.FastSineTransformer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/commons/math3/transform/FastSineTransformer;
            0    7     1     f  [D
            0    7     2  type  Lorg/apache/commons/math3/transform/TransformType;
            2    3     3     s  D
            6    7     3     s  D
    MethodParameters:
      Name  Flags
      f     final
      type  final

  public double[] transform(org.apache.commons.math3.analysis.UnivariateFunction, double, double, int, org.apache.commons.math3.transform.TransformType);
    descriptor: (Lorg/apache/commons/math3/analysis/UnivariateFunction;DDILorg/apache/commons/math3/transform/TransformType;)[D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=9, args_size=6
        start local 0 // org.apache.commons.math3.transform.FastSineTransformer this
        start local 1 // org.apache.commons.math3.analysis.UnivariateFunction f
        start local 2 // double min
        start local 4 // double max
        start local 6 // int n
        start local 7 // org.apache.commons.math3.transform.TransformType type
         0: .line 122
            aload 1 /* f */
            dload 2 /* min */
            dload 4 /* max */
            iload 6 /* n */
            invokestatic org.apache.commons.math3.analysis.FunctionUtils.sample:(Lorg/apache/commons/math3/analysis/UnivariateFunction;DDI)[D
            astore 8 /* data */
        start local 8 // double[] data
         1: .line 123
            aload 8 /* data */
            iconst_0
            dconst_0
            dastore
         2: .line 124
            aload 0 /* this */
            aload 8 /* data */
            aload 7 /* type */
            invokevirtual org.apache.commons.math3.transform.FastSineTransformer.transform:([DLorg/apache/commons/math3/transform/TransformType;)[D
            areturn
        end local 8 // double[] data
        end local 7 // org.apache.commons.math3.transform.TransformType type
        end local 6 // int n
        end local 4 // double max
        end local 2 // double min
        end local 1 // org.apache.commons.math3.analysis.UnivariateFunction f
        end local 0 // org.apache.commons.math3.transform.FastSineTransformer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/commons/math3/transform/FastSineTransformer;
            0    3     1     f  Lorg/apache/commons/math3/analysis/UnivariateFunction;
            0    3     2   min  D
            0    3     4   max  D
            0    3     6     n  I
            0    3     7  type  Lorg/apache/commons/math3/transform/TransformType;
            1    3     8  data  [D
    MethodParameters:
      Name  Flags
      f     final
      min   final
      max   final
      n     final
      type  final

  protected double[] fst(double[]);
    descriptor: ([D)[D
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=8, locals=10, args_size=2
        start local 0 // org.apache.commons.math3.transform.FastSineTransformer this
        start local 1 // double[] f
         0: .line 138
            aload 1 /* f */
            arraylength
            newarray 7
            astore 2 /* transformed */
        start local 2 // double[] transformed
         1: .line 140
            aload 1 /* f */
            arraylength
            i2l
            invokestatic org.apache.commons.math3.util.ArithmeticUtils.isPowerOfTwo:(J)Z
            ifne 6
         2: .line 141
            new org.apache.commons.math3.exception.MathIllegalArgumentException
            dup
         3: .line 142
            getstatic org.apache.commons.math3.exception.util.LocalizedFormats.NOT_POWER_OF_TWO_CONSIDER_PADDING:Lorg/apache/commons/math3/exception/util/LocalizedFormats;
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
         4: .line 143
            aload 1 /* f */
            arraylength
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
         5: .line 141
            aastore
            invokespecial org.apache.commons.math3.exception.MathIllegalArgumentException.<init>:(Lorg/apache/commons/math3/exception/util/Localizable;[Ljava/lang/Object;)V
            athrow
         6: .line 145
      StackMap locals: double[]
      StackMap stack:
            aload 1 /* f */
            iconst_0
            daload
            dconst_0
            dcmpl
            ifeq 11
         7: .line 146
            new org.apache.commons.math3.exception.MathIllegalArgumentException
            dup
         8: .line 147
            getstatic org.apache.commons.math3.exception.util.LocalizedFormats.FIRST_ELEMENT_NOT_ZERO:Lorg/apache/commons/math3/exception/util/LocalizedFormats;
            iconst_1
            anewarray java.lang.Object
            dup
            iconst_0
         9: .line 148
            aload 1 /* f */
            iconst_0
            daload
            invokestatic java.lang.Double.valueOf:(D)Ljava/lang/Double;
        10: .line 146
            aastore
            invokespecial org.apache.commons.math3.exception.MathIllegalArgumentException.<init>:(Lorg/apache/commons/math3/exception/util/Localizable;[Ljava/lang/Object;)V
            athrow
        11: .line 150
      StackMap locals:
      StackMap stack:
            aload 1 /* f */
            arraylength
            istore 3 /* n */
        start local 3 // int n
        12: .line 151
            iload 3 /* n */
            iconst_1
            if_icmpne 15
        13: .line 152
            aload 2 /* transformed */
            iconst_0
            dconst_0
            dastore
        14: .line 153
            aload 2 /* transformed */
            areturn
        15: .line 157
      StackMap locals: int
      StackMap stack:
            iload 3 /* n */
            newarray 7
            astore 4 /* x */
        start local 4 // double[] x
        16: .line 158
            aload 4 /* x */
            iconst_0
            dconst_0
            dastore
        17: .line 159
            aload 4 /* x */
            iload 3 /* n */
            iconst_1
            ishr
            ldc 2.0
            aload 1 /* f */
            iload 3 /* n */
            iconst_1
            ishr
            daload
            dmul
            dastore
        18: .line 160
            iconst_1
            istore 5 /* i */
        start local 5 // int i
        19: goto 25
        20: .line 161
      StackMap locals: double[] int
      StackMap stack:
            iload 5 /* i */
            i2d
            ldc 3.141592653589793
            dmul
            iload 3 /* n */
            i2d
            ddiv
            invokestatic org.apache.commons.math3.util.FastMath.sin:(D)D
            aload 1 /* f */
            iload 5 /* i */
            daload
            aload 1 /* f */
            iload 3 /* n */
            iload 5 /* i */
            isub
            daload
            dadd
            dmul
            dstore 6 /* a */
        start local 6 // double a
        21: .line 162
            ldc 0.5
            aload 1 /* f */
            iload 5 /* i */
            daload
            aload 1 /* f */
            iload 3 /* n */
            iload 5 /* i */
            isub
            daload
            dsub
            dmul
            dstore 8 /* b */
        start local 8 // double b
        22: .line 163
            aload 4 /* x */
            iload 5 /* i */
            dload 6 /* a */
            dload 8 /* b */
            dadd
            dastore
        23: .line 164
            aload 4 /* x */
            iload 3 /* n */
            iload 5 /* i */
            isub
            dload 6 /* a */
            dload 8 /* b */
            dsub
            dastore
        end local 8 // double b
        end local 6 // double a
        24: .line 160
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
        25: iload 5 /* i */
            iload 3 /* n */
            iconst_1
            ishr
            if_icmplt 20
        end local 5 // int i
        26: .line 167
            new org.apache.commons.math3.transform.FastFourierTransformer
            dup
            getstatic org.apache.commons.math3.transform.DftNormalization.STANDARD:Lorg/apache/commons/math3/transform/DftNormalization;
            invokespecial org.apache.commons.math3.transform.FastFourierTransformer.<init>:(Lorg/apache/commons/math3/transform/DftNormalization;)V
            astore 5 /* transformer */
        start local 5 // org.apache.commons.math3.transform.FastFourierTransformer transformer
        27: .line 168
            aload 5 /* transformer */
            aload 4 /* x */
            getstatic org.apache.commons.math3.transform.TransformType.FORWARD:Lorg/apache/commons/math3/transform/TransformType;
            invokevirtual org.apache.commons.math3.transform.FastFourierTransformer.transform:([DLorg/apache/commons/math3/transform/TransformType;)[Lorg/apache/commons/math3/complex/Complex;
            astore 6 /* y */
        start local 6 // org.apache.commons.math3.complex.Complex[] y
        28: .line 171
            aload 2 /* transformed */
            iconst_0
            dconst_0
            dastore
        29: .line 172
            aload 2 /* transformed */
            iconst_1
            ldc 0.5
            aload 6 /* y */
            iconst_0
            aaload
            invokevirtual org.apache.commons.math3.complex.Complex.getReal:()D
            dmul
            dastore
        30: .line 173
            iconst_1
            istore 7 /* i */
        start local 7 // int i
        31: goto 35
        32: .line 174
      StackMap locals: org.apache.commons.math3.transform.FastSineTransformer double[] double[] int double[] org.apache.commons.math3.transform.FastFourierTransformer org.apache.commons.math3.complex.Complex[] int
      StackMap stack:
            aload 2 /* transformed */
            iconst_2
            iload 7 /* i */
            imul
            aload 6 /* y */
            iload 7 /* i */
            aaload
            invokevirtual org.apache.commons.math3.complex.Complex.getImaginary:()D
            dneg
            dastore
        33: .line 175
            aload 2 /* transformed */
            iconst_2
            iload 7 /* i */
            imul
            iconst_1
            iadd
            aload 6 /* y */
            iload 7 /* i */
            aaload
            invokevirtual org.apache.commons.math3.complex.Complex.getReal:()D
            aload 2 /* transformed */
            iconst_2
            iload 7 /* i */
            imul
            iconst_1
            isub
            daload
            dadd
            dastore
        34: .line 173
            iinc 7 /* i */ 1
      StackMap locals:
      StackMap stack:
        35: iload 7 /* i */
            iload 3 /* n */
            iconst_1
            ishr
            if_icmplt 32
        end local 7 // int i
        36: .line 178
            aload 2 /* transformed */
            areturn
        end local 6 // org.apache.commons.math3.complex.Complex[] y
        end local 5 // org.apache.commons.math3.transform.FastFourierTransformer transformer
        end local 4 // double[] x
        end local 3 // int n
        end local 2 // double[] transformed
        end local 1 // double[] f
        end local 0 // org.apache.commons.math3.transform.FastSineTransformer this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   37     0         this  Lorg/apache/commons/math3/transform/FastSineTransformer;
            0   37     1            f  [D
            1   37     2  transformed  [D
           12   37     3            n  I
           16   37     4            x  [D
           19   26     5            i  I
           21   24     6            a  D
           22   24     8            b  D
           27   37     5  transformer  Lorg/apache/commons/math3/transform/FastFourierTransformer;
           28   37     6            y  [Lorg/apache/commons/math3/complex/Complex;
           31   36     7            i  I
    Exceptions:
      throws org.apache.commons.math3.exception.MathIllegalArgumentException
    MethodParameters:
      Name  Flags
      f     
}
SourceFile: "FastSineTransformer.java"
/

org.apache.commons/ commons-math3/ 3.6.1/ org/apache/commons/math3/transform/FastSineTransformer.class
