Maths

java.lang.Object
- org.sbml.jsbml.util.Maths

```
public class Maths
extends java.lang.Object
```
This class provides several static methods for mathematical operations such as faculty, logarithms and several trigonometric functions, which are not part of standard Java, but necessary to evaluate the content of SBML files.

Since:

0.8

Version:

$Rev$

Author:

Andreas Dräger, Diedonné Mosu Wouamba, Alexander Dörr

Field Summary

Fields
Modifier and Type	Field and Description
`static double`	`AVOGADRO_L3V1` Avogadro's constant of 6.02214179 ⋅ 10²³ mol^-1.
`static double`	`R` Universal gas constant of 8.314472 J ⋅ mol^-1 ⋅ K^-1 according to D.

Constructor Summary

Constructors
Modifier Constructor and Description

private Maths()
Constructor that should not be used; this class provides static methods only.

Constructors
Modifier	Constructor and Description
`private`	`Maths()` Constructor that should not be used; this class provides static methods only.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static double`	`arccosh(double n)` This method computes the arccosh of n
`static double`	`arccot(double x)` This method computes the arcus-cotangens of a double value.
`static double`	`arccoth(double n)` This method computes the arccoth of n
`static double`	`arccsc(double x)` This method computes the arccosecant of a double value
`static double`	`arccsch(double n)` This method computes the arccsch of n
`static double`	`arcsec(double x)` This method computes the arcsecant of a double value
`static double`	`arcsech(double n)` This method computes the arcsech of n
`static double`	`arcsinh(double n)` This method computes the arcsinh of n
`static double`	`arctanh(double n)` This method computes the arctanh of n
`static double`	`cot(double n)` This method computes the cot of n
`static double`	`coth(double n)` This method computes the coth of n
`static double`	`csc(double n)` This method computes the csc of n
`static double`	`csch(double n)` This method computes the csch of n
`static long`	`factorial(int n)` This method computes the factorial! function.
`static boolean`	`isInt(double x)` Checks if the given argument represents an integer number, i.e., if it can be casted to int without loosing information.
`static double`	`ln(double n)` This method computes the ln of n
`static double`	`log(double n)` This method computes the log of n to the base 10
`static double`	`log(double number, double base)` This method computes the logarithm of a number x to a giving base b.
`static double`	`root(double radiant, double rootExponent)` This method computes the rootExponent-th root of the radiant
`static double`	`sec(double x)` This method computes the secant of a double value.
`static double`	`sech(double n)` This method computes the sech of n

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

- Field Detail
  - AVOGADRO_L3V1
```
public static final double AVOGADRO_L3V1
```
    Avogadro's constant of 6.02214179 ⋅ 10²³ mol^-1. The standard deviation of this constant is approximately 36 ⋅ 10¹⁶ mol^-1. See Mohr, P. J., Taylor, B. N., and Newell, D. B. (2008). CODATA Recommended Values of the Fundamental 22 Physical Constants: 2006. Reviews of Modern Physics, 80:633-731. Note that in SBML this number is treated as a dimensionless quantity. The suffix of the variable's name (L3V1) suggests that in later SBML values new experimentally determined values for this constant could be determined.
    
    See Also:
    
    Constant Field Values
  - R
```
public static final double R
```
    Universal gas constant of 8.314472 J ⋅ mol^-1 ⋅ K^-1 according to D. R. Linde, CRC Handbook of Chemistry and Physics, 81st ed., CRC Press, Boca Raton, Florida, 2000.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Maths
```
private Maths()
```
    Constructor that should not be used; this class provides static methods only.
- Method Detail
  - arccosh
```
public static final double arccosh(double n)
```
    This method computes the arccosh of n
    
    Parameters:
    
    n -
    
    Returns:
  - arccot
```
public static final double arccot(double x)
```
    This method computes the arcus-cotangens of a double value.
    
    Parameters:
    
    x -
    
    Returns:
  - arccoth
```
public static final double arccoth(double n)
```
    This method computes the arccoth of n
    
    Parameters:
    
    n -
    
    Returns:
  - arccsc
```
public static final double arccsc(double x)
```
    This method computes the arccosecant of a double value
    
    Parameters:
    
    x -
    
    Returns:
  - arccsch
```
public static final double arccsch(double n)
```
    This method computes the arccsch of n
    
    Parameters:
    
    n -
    
    Returns:
  - arcsec
```
public static final double arcsec(double x)
```
    This method computes the arcsecant of a double value
    
    Parameters:
    
    x -
    
    Returns:
  - arcsech
```
public static final double arcsech(double n)
```
    This method computes the arcsech of n
    
    Parameters:
    
    n -
    
    Returns:
  - arcsinh
```
public static final double arcsinh(double n)
```
    This method computes the arcsinh of n
    
    Parameters:
    
    n -
    
    Returns:
  - arctanh
```
public static final double arctanh(double n)
```
    This method computes the arctanh of n
    
    Parameters:
    
    n -
    
    Returns:
  - cot
```
public static final double cot(double n)
```
    This method computes the cot of n
    
    Parameters:
    
    n -
    
    Returns:
  - coth
```
public static final double coth(double n)
```
    This method computes the coth of n
    
    Parameters:
    
    n -
    
    Returns:
  - csc
```
public static final double csc(double n)
```
    This method computes the csc of n
    
    Parameters:
    
    n -
    
    Returns:
  - csch
```
public static final double csch(double n)
```
    This method computes the csch of n
    
    Parameters:
    
    n -
    
    Returns:
  - factorial
```
public static final long factorial(int n)
```
    This method computes the factorial! function.
    
    Parameters:
    
    n -
    
    Returns:
  - isInt
```
public static final boolean isInt(double x)
```
    Checks if the given argument represents an integer number, i.e., if it can be casted to int without loosing information.
    
    Parameters:
    
    x -
    
    Returns:
  - ln
```
public static final double ln(double n)
```
    This method computes the ln of n
    
    Parameters:
    
    n -
    
    Returns:
  - log
```
public static final double log(double n)
```
    This method computes the log of n to the base 10
    
    Parameters:
    
    n -
    
    Returns:
  - log
```
public static final double log(double number,
                               double base)
```
    This method computes the logarithm of a number x to a giving base b.
    
    Parameters:
    
    number -
    
    base -
    
    Returns:
  - root
```
public static final double root(double radiant,
                                double rootExponent)
```
    This method computes the rootExponent-th root of the radiant
    
    Parameters:
    
    radiant -
    
    rootExponent -
    
    Returns:
  - sec
```
public static final double sec(double x)
```
    This method computes the secant of a double value.
    
    Parameters:
    
    x -
    
    Returns:
  - sech
```
public static final double sech(double n)
```
    This method computes the sech of n
    
    Parameters:
    
    n -
    
    Returns:

Class Maths

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

AVOGADRO_L3V1

R

Constructor Detail

Maths

Method Detail

arccosh

arccot

arccoth

arccsc

arccsch

arcsec

arcsech

arcsinh

arctanh

cot

coth

csc

csch

factorial

isInt

ln

log

log

root

sec

sech