java.lang.Object
- org.mariuszgromada.math.mxparser.mathcollection.MathConstants

```
public final class MathConstants
extends Object
```
MathConstants - class representing the most important math constants.

Version:

5.2.0

Author:

Mariusz Gromada
MathParser.org - mXparser project page
mXparser on GitHub
INFIMA place to purchase a commercial MathParser.org-mXparser software license
info@mathparser.org
ScalarMath.org - a powerful math engine and math scripting language
Scalar Lite
Scalar Pro
MathSpace.pl

Buy me a cup of coffee via donation
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Field Summary

Fields
Modifier and Type	Field	Description
`static double`	`ALLADI_GRINSTEAD`	Alladi-Grinstead constant
`static double`	`APERY`	Apery's constant
`static double`	`BACKHOUSE`	Backhouse's constant
`static double`	`BERNSTEIN`	Bernstein's constant
`static double`	`BRAUN_PRIME_QUADR`	Brun's constant for prime quadruplets
`static double`	`BRAUN_TWIN_PRIME`	Brun's constant for twin primes
`static double`	`BRUIJN_NEWMAN`	de Bruijn-Newman constant
`static double`	`CAHEN`	Cahen's constant
`static double`	`CATALAN`	Catalan's constant
`static double`	`D2BYSQRT3`	D2BYSQRT3
`static double`	`E`	Napier's constant, or Euler's number, base of Natural logarithm
`static double`	`EMBREE_TREFETHEN`	Embree-Trefethen constant
`static double`	`ERDOS_BORWEIN`	Erdos-Borwein constant
`static double`	`EULER_MASCHERONI`	Euler-Mascheroni constant
`static double`	`EXP_1_OVER_E`	Tetration right convergence limit
`static double`	`EXP_MINUS_1`	1 over e
`static double`	`EXP_MINUS_E`	Tetration left convergence limit
`static double`	`FEIGENBAUM_ALFA`	Feigenbaum constant
`static double`	`FEIGENBAUM_DELTA`	Feigenbaum constant
`static double`	`FRANSEN_ROBINSON`	Fransén-Robinson constant
`static double`	`GAUSS_KUZMIN_WIRSING`	Gauss-Kuzmin-Wirsing constant
`static double`	`GOLDEN_RATIO`	Golden ratio
`static double`	`GOLOMB_DICKMAN`	Golomb-Dickman constant
`static double`	`GOMPERTZ`	Gompertz Constant OEIS A073003
`static double`	`HAFNER_SARNAK_MCCURLEY`	Hafner-Sarnak-McCurley constant
`static double`	`KHINCHIN`	Khinchin's constant
`static double`	`LANDAU`	Landau's constant
`static double`	`LANDAU_RAMANUJAN`	Landau-Ramanujan constant
`static double`	`LAPLACE_LIMIT`	Laplace limit
`static double`	`LEGENDRE`	Legendre's constant
`static double`	`LENGYEL`	Lengyel's constant
`static double`	`LEVY`	Levy's constant
`static double`	`LI2`	A069284 - Logarithmic integral function li(2)
`static double`	`LIEB_QUARE_ICE`	Porter's constant
`static double`	`LN_SQRT2`	Natural logarithm of sqrt(2)
`static double`	`LNPI`	Natural logarithm of pi
`static double`	`MEISSEL_MERTEENS`	Meissel-Mertens constant
`static double`	`MILLS`	Mills' constant
`static double`	`MRB`	MRB constant
`static double`	`NIVEN`	Niven's constant
`static double`	`NOT_A_NUMBER`	Not-a-Number
`static double`	`OMEGA`	Omega constant
`static double`	`PARABOLIC`	Parabolic constant
`static double`	`PI`	Pi, Archimedes' constant or Ludolph's number
`static double`	`PIBY2`	Pi/2
`static double`	`PIINV`	1/Pi
`static double`	`PLASTIC`	Plastic constant
`static double`	`PORTER`	Porter's constant
`static double`	`RAMANUJAN_SOLDNER`	Ramanujan-Soldner constant
`static double`	`SIERPINSKI`	Sierpiński's constant
`static double`	`SQRT2`	Square root of 2
`static double`	`SQRT2BY2`	SQRT2BY2
`static double`	`SQRT2Pi`	Square root of 2*pi
`static double`	`SQRT3`	SQRT3
`static double`	`SQRT3BY2`	SQRT3BY2
`static double`	`SQRT3BY3`	SQRT3BY3
`static double`	`SQRT5`	SQRT5
`static double`	`SQRTPi`	Square root of pi
`static double`	`TWIN_PRIME`	Feigenbaum constant
`static double`	`VISWANATH`	Viswanath's constant

Constructor Summary

Constructors
Constructor Description

MathConstants()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`getConstantValue(int constantValueId)`	Returns constant value, where constant is represented by the token id in the ConstantValue class

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - PI
```
public static final double PI
```
    Pi, Archimedes' constant or Ludolph's number
    
    See Also:
    
    Constant Field Values
  - PIBY2
```
public static final double PIBY2
```
    Pi/2
    
    See Also:
    
    Constant Field Values
  - PIINV
```
public static final double PIINV
```
    1/Pi
    
    See Also:
    
    Constant Field Values
  - E
```
public static final double E
```
    Napier's constant, or Euler's number, base of Natural logarithm
    
    See Also:
    
    Constant Field Values
  - EULER_MASCHERONI
```
public static final double EULER_MASCHERONI
```
    Euler-Mascheroni constant
    
    See Also:
    
    Constant Field Values
  - GOLDEN_RATIO
```
public static final double GOLDEN_RATIO
```
    Golden ratio
    
    See Also:
    
    Constant Field Values
  - PLASTIC
```
public static final double PLASTIC
```
    Plastic constant
    
    See Also:
    
    Constant Field Values
  - EMBREE_TREFETHEN
```
public static final double EMBREE_TREFETHEN
```
    Embree-Trefethen constant
    
    See Also:
    
    Constant Field Values
  - FEIGENBAUM_DELTA
```
public static final double FEIGENBAUM_DELTA
```
    Feigenbaum constant
    
    See Also:
    
    Constant Field Values
  - FEIGENBAUM_ALFA
```
public static final double FEIGENBAUM_ALFA
```
    Feigenbaum constant
    
    See Also:
    
    Constant Field Values
  - TWIN_PRIME
```
public static final double TWIN_PRIME
```
    Feigenbaum constant
    
    See Also:
    
    Constant Field Values
  - MEISSEL_MERTEENS
```
public static final double MEISSEL_MERTEENS
```
    Meissel-Mertens constant
    
    See Also:
    
    Constant Field Values
  - BRAUN_TWIN_PRIME
```
public static final double BRAUN_TWIN_PRIME
```
    Brun's constant for twin primes
    
    See Also:
    
    Constant Field Values
  - BRAUN_PRIME_QUADR
```
public static final double BRAUN_PRIME_QUADR
```
    Brun's constant for prime quadruplets
    
    See Also:
    
    Constant Field Values
  - BRUIJN_NEWMAN
```
public static final double BRUIJN_NEWMAN
```
    de Bruijn-Newman constant
    
    See Also:
    
    Constant Field Values
  - CATALAN
```
public static final double CATALAN
```
    Catalan's constant
    
    See Also:
    
    Constant Field Values
  - LANDAU_RAMANUJAN
```
public static final double LANDAU_RAMANUJAN
```
    Landau-Ramanujan constant
    
    See Also:
    
    Constant Field Values
  - VISWANATH
```
public static final double VISWANATH
```
    Viswanath's constant
    
    See Also:
    
    Constant Field Values
  - LEGENDRE
```
public static final double LEGENDRE
```
    Legendre's constant
    
    See Also:
    
    Constant Field Values
  - RAMANUJAN_SOLDNER
```
public static final double RAMANUJAN_SOLDNER
```
    Ramanujan-Soldner constant
    
    See Also:
    
    Constant Field Values
  - ERDOS_BORWEIN
```
public static final double ERDOS_BORWEIN
```
    Erdos-Borwein constant
    
    See Also:
    
    Constant Field Values
  - BERNSTEIN
```
public static final double BERNSTEIN
```
    Bernstein's constant
    
    See Also:
    
    Constant Field Values
  - GAUSS_KUZMIN_WIRSING
```
public static final double GAUSS_KUZMIN_WIRSING
```
    Gauss-Kuzmin-Wirsing constant
    
    See Also:
    
    Constant Field Values
  - HAFNER_SARNAK_MCCURLEY
```
public static final double HAFNER_SARNAK_MCCURLEY
```
    Hafner-Sarnak-McCurley constant
    
    See Also:
    
    Constant Field Values
  - GOLOMB_DICKMAN
```
public static final double GOLOMB_DICKMAN
```
    Golomb-Dickman constant
    
    See Also:
    
    Constant Field Values
  - CAHEN
```
public static final double CAHEN
```
    Cahen's constant
    
    See Also:
    
    Constant Field Values
  - LAPLACE_LIMIT
```
public static final double LAPLACE_LIMIT
```
    Laplace limit
    
    See Also:
    
    Constant Field Values
  - ALLADI_GRINSTEAD
```
public static final double ALLADI_GRINSTEAD
```
    Alladi-Grinstead constant
    
    See Also:
    
    Constant Field Values
  - LENGYEL
```
public static final double LENGYEL
```
    Lengyel's constant
    
    See Also:
    
    Constant Field Values
  - LEVY
```
public static final double LEVY
```
    Levy's constant
    
    See Also:
    
    Constant Field Values
  - APERY
```
public static final double APERY
```
    Apery's constant
    
    See Also:
    
    Constant Field Values
  - MILLS
```
public static final double MILLS
```
    Mills' constant
    
    See Also:
    
    Constant Field Values
  - BACKHOUSE
```
public static final double BACKHOUSE
```
    Backhouse's constant
    
    See Also:
    
    Constant Field Values
  - PORTER
```
public static final double PORTER
```
    Porter's constant
    
    See Also:
    
    Constant Field Values
  - LIEB_QUARE_ICE
```
public static final double LIEB_QUARE_ICE
```
    Porter's constant
    
    See Also:
    
    Constant Field Values
  - NIVEN
```
public static final double NIVEN
```
    Niven's constant
    
    See Also:
    
    Constant Field Values
  - SIERPINSKI
```
public static final double SIERPINSKI
```
    Sierpiński's constant
    
    See Also:
    
    Constant Field Values
  - KHINCHIN
```
public static final double KHINCHIN
```
    Khinchin's constant
    
    See Also:
    
    Constant Field Values
  - FRANSEN_ROBINSON
```
public static final double FRANSEN_ROBINSON
```
    Fransén-Robinson constant
    
    See Also:
    
    Constant Field Values
  - LANDAU
```
public static final double LANDAU
```
    Landau's constant
    
    See Also:
    
    Constant Field Values
  - PARABOLIC
```
public static final double PARABOLIC
```
    Parabolic constant
    
    See Also:
    
    Constant Field Values
  - OMEGA
```
public static final double OMEGA
```
    Omega constant
    
    See Also:
    
    Constant Field Values
  - MRB
```
public static final double MRB
```
    MRB constant
    
    See Also:
    
    Constant Field Values
  - LI2
```
public static final double LI2
```
    A069284 - Logarithmic integral function li(2)
    
    See Also:
    
    Constant Field Values
  - GOMPERTZ
```
public static final double GOMPERTZ
```
    Gompertz Constant OEIS A073003
    
    See Also:
    
    Constant Field Values
  - SQRT2
```
public static final double SQRT2
```
    Square root of 2
  - SQRTPi
```
public static final double SQRTPi
```
    Square root of pi
    
    See Also:
    
    Constant Field Values
  - SQRT2Pi
```
public static final double SQRT2Pi
```
    Square root of 2*pi
    
    See Also:
    
    Constant Field Values
  - LNPI
```
public static final double LNPI
```
    Natural logarithm of pi
  - EXP_MINUS_E
```
public static final double EXP_MINUS_E
```
    Tetration left convergence limit
  - EXP_1_OVER_E
```
public static final double EXP_1_OVER_E
```
    Tetration right convergence limit
  - EXP_MINUS_1
```
public static final double EXP_MINUS_1
```
    1 over e
    
    See Also:
    
    Constant Field Values
  - LN_SQRT2
```
public static final double LN_SQRT2
```
    Natural logarithm of sqrt(2)
  - SQRT2BY2
```
public static final double SQRT2BY2
```
    SQRT2BY2
  - SQRT3
```
public static final double SQRT3
```
    SQRT3
  - SQRT3BY2
```
public static final double SQRT3BY2
```
    SQRT3BY2
  - D2BYSQRT3
```
public static final double D2BYSQRT3
```
    D2BYSQRT3
  - SQRT3BY3
```
public static final double SQRT3BY3
```
    SQRT3BY3
  - SQRT5
```
public static final double SQRT5
```
    SQRT5
  - NOT_A_NUMBER
```
public static final double NOT_A_NUMBER
```
    Not-a-Number
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - MathConstants
```
public MathConstants()
```
- Method Detail
  - getConstantValue
```
public static double getConstantValue(int constantValueId)
```
    Returns constant value, where constant is represented by the token id in the ConstantValue class
    
    Parameters:
    
    constantValueId - Please refer to the ConstantValue class.
    
    Returns:
    
    Returns constant value if id is known, otherwise Double.NaN is returned.
    
    See Also:
    
    ConstantValue

Class MathConstants

Buy me a cup of coffee via donation

or support me purchasing the license via ORDER Page , or INFIMA online store

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

PI

PIBY2

PIINV

E

EULER_MASCHERONI

GOLDEN_RATIO

PLASTIC

EMBREE_TREFETHEN

FEIGENBAUM_DELTA

FEIGENBAUM_ALFA

TWIN_PRIME

MEISSEL_MERTEENS

BRAUN_TWIN_PRIME

BRAUN_PRIME_QUADR

BRUIJN_NEWMAN

CATALAN

LANDAU_RAMANUJAN

VISWANATH

LEGENDRE

RAMANUJAN_SOLDNER

ERDOS_BORWEIN

BERNSTEIN

GAUSS_KUZMIN_WIRSING

HAFNER_SARNAK_MCCURLEY

GOLOMB_DICKMAN

CAHEN

LAPLACE_LIMIT

ALLADI_GRINSTEAD

LENGYEL

LEVY

APERY

MILLS

BACKHOUSE

PORTER

LIEB_QUARE_ICE

NIVEN

SIERPINSKI

KHINCHIN

FRANSEN_ROBINSON

LANDAU

PARABOLIC

OMEGA

MRB

LI2

GOMPERTZ

SQRT2

SQRTPi

SQRT2Pi

LNPI

EXP_MINUS_E

EXP_1_OVER_E

EXP_MINUS_1

LN_SQRT2

SQRT2BY2

SQRT3

SQRT3BY2

D2BYSQRT3

SQRT3BY3

SQRT5

NOT_A_NUMBER

Constructor Detail

MathConstants

Method Detail

getConstantValue