MpqScalar

java.lang.Object
- apron.Coeff
- - apron.Scalar
  - - apron.MpqScalar

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable
```
public class MpqScalar
extends Scalar
implements java.lang.Cloneable, java.io.Serializable
```
Class of Scalar objects backed up by a Mpq multi-precision rational.
Note: infinities are represented by using a null denominator. This may cause problems if manipulated by Mpq functions.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

Mpq val
The (mutable) scalar value.

Fields
Modifier and Type	Field and Description
`Mpq`	`val` The (mutable) scalar value.

Constructor Summary

Constructors
Constructor and Description
`MpqScalar()` Creates a new Mpq Scalar set to 0.
`MpqScalar(java.math.BigInteger x)` Creates a new Mpq Scalar initialized to x.
`MpqScalar(java.math.BigInteger num, java.math.BigInteger den)` Creates a new Mpq Scalar initialized to the fraction num/den.
`MpqScalar(int x)` Creates a new Mpq Scalar initialized to x.
`MpqScalar(int num, int den)` Creates a new Mpq Scalar initialized to the fraction num/den.
`MpqScalar(Mpq x)` Creates a new Mpq Scalar holding a copy of x.
`MpqScalar(MpqScalar x)` Creates a copy of x.
`MpqScalar(Mpz x)` Creates a new Mpq Scalar holding a copy of x.
`MpqScalar(Mpz num, Mpz den)` Creates a new Mpq Scalar initialized to the fraction num/den.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`MpqScalar`	`clone()` Returns a copy of this.
`int`	`cmp(int x)` Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
`int`	`cmp(MpqScalar x)` Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
`int`	`cmp(Scalar x)` Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
`MpqScalar`	`copy()` Creates a copy of the Scalar, of the same kind.
`Mpq`	`get()` Returns the underlying Mpq.
`int`	`hashCode()` Returns a hash of the value of this.
`void`	`inv()` Inverts this (exact).
`boolean`	`isEqual(int x)` Whether this and x have the same value.
`boolean`	`isEqual(MpqScalar x)` Whether this and x have the same value.
`boolean`	`isEqual(Scalar x)` Whether this and x have the same value.
`int`	`isInfty()` Returns -1, 0 or 1 if this is respectively -oo, finite, or +oo.
`boolean`	`isZero()` Whether this equals 0.
`void`	`neg()` Negates this (exact).
`void`	`set(java.math.BigInteger x)` Sets this to x.
`void`	`set(java.math.BigInteger num, java.math.BigInteger den)` Sets this to the fraction num/den.
`void`	`set(int x)` Sets this to x.
`void`	`set(int num, int den)` Sets this to the fraction num/den.
`void`	`set(Mpq x)` Copies the value of x into this.
`void`	`set(MpqScalar x)` Copies the value of x into this.
`void`	`set(Mpz x)` Copies the value of x into this.
`void`	`setInfty(int sign)` Sets the scalar to +oo or -oo.
`int`	`sgn()` Returns the sign of this.
`int`	`toDouble(double[] r, int round)` Copies the value of this into r[0] (with rounding).
`int`	`toMpfr(Mpfr r, int round)` Copies the value of this into r (with rounding).
`int`	`toMpq(Mpq r, int round)` Copies the value of this into r (exact).
`java.lang.String`	`toString()` Returns a string representation of the value of this.

Methods inherited from class apron.Scalar
cmp, create, inf, isEqual, isScalar, sup

Methods inherited from class apron.Coeff
equals

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - val
```
public Mpq val
```
    The (mutable) scalar value.
- Constructor Detail
  - MpqScalar
```
public MpqScalar()
```
    Creates a new Mpq Scalar set to 0.
  - MpqScalar
```
public MpqScalar(MpqScalar x)
```
    Creates a copy of x.
  - MpqScalar
```
public MpqScalar(Mpq x)
```
    Creates a new Mpq Scalar holding a copy of x.
  - MpqScalar
```
public MpqScalar(Mpz x)
```
    Creates a new Mpq Scalar holding a copy of x.
  - MpqScalar
```
public MpqScalar(int x)
```
    Creates a new Mpq Scalar initialized to x.
  - MpqScalar
```
public MpqScalar(int num,
                 int den)
```
    Creates a new Mpq Scalar initialized to the fraction num/den.
  - MpqScalar
```
public MpqScalar(Mpz num,
                 Mpz den)
```
    Creates a new Mpq Scalar initialized to the fraction num/den.
  - MpqScalar
```
public MpqScalar(java.math.BigInteger x)
```
    Creates a new Mpq Scalar initialized to x.
  - MpqScalar
```
public MpqScalar(java.math.BigInteger num,
                 java.math.BigInteger den)
```
    Creates a new Mpq Scalar initialized to the fraction num/den.
- Method Detail
  - copy
```
public MpqScalar copy()
```
    Description copied from class: Scalar
    
    Creates a copy of the Scalar, of the same kind.
    
    Specified by:
    
    copy in class Scalar
  - set
```
public void set(MpqScalar x)
```
    Copies the value of x into this.
  - set
```
public void set(Mpq x)
```
    Copies the value of x into this.
  - set
```
public void set(Mpz x)
```
    Copies the value of x into this.
  - set
```
public void set(int x)
```
    Sets this to x.
    
    Specified by:
    
    set in class Scalar
  - set
```
public void set(int num,
                int den)
```
    Sets this to the fraction num/den.
  - set
```
public void set(java.math.BigInteger x)
```
    Sets this to x.
  - set
```
public void set(java.math.BigInteger num,
                java.math.BigInteger den)
```
    Sets this to the fraction num/den.
  - setInfty
```
public void setInfty(int sign)
```
    Sets the scalar to +oo or -oo.
    The result is +oo if sign is strictly positive, -oo if sign is strictly negative, 0 if sign is null.
    
    Specified by:
    
    setInfty in class Scalar
  - get
```
public Mpq get()
```
    Returns the underlying Mpq.
  - toMpq
```
public int toMpq(Mpq r,
                 int round)
```
    Copies the value of this into r (exact).
    
    Specified by:
    
    toMpq in class Scalar
    
    Returns:
    
    0.
  - toMpfr
```
public int toMpfr(Mpfr r,
                  int round)
```
    Copies the value of this into r (with rounding).
    
    Specified by:
    
    toMpfr in class Scalar
    
    Returns:
    
    -1, 0, 1 if the result is lower, exact, or greater than this.
  - toDouble
```
public int toDouble(double[] r,
                    int round)
```
    Copies the value of this into r[0] (with rounding).
    
    Specified by:
    
    toDouble in class Scalar
    
    Returns:
    
    -1, 0, 1 if the result is lower, exact, or greater than this.
  - toString
```
public java.lang.String toString()
```
    Returns a string representation of the value of this.
    
    Specified by:
    
    toString in class Scalar
  - hashCode
```
public int hashCode()
```
    Returns a hash of the value of this.
    
    Specified by:
    
    hashCode in class Scalar
  - isInfty
```
public int isInfty()
```
    Returns -1, 0 or 1 if this is respectively -oo, finite, or +oo.
    
    Specified by:
    
    isInfty in class Scalar
  - isZero
```
public boolean isZero()
```
    Whether this equals 0.
    
    Specified by:
    
    isZero in class Scalar
  - cmp
```
public int cmp(MpqScalar x)
```
    Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
  - cmp
```
public int cmp(Scalar x)
```
    Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
    
    Specified by:
    
    cmp in class Scalar
  - cmp
```
public int cmp(int x)
```
    Returns -1, 0, 1 if this is respectively strictly smaller, equal, or strictly greater than x.
    
    Specified by:
    
    cmp in class Scalar
  - isEqual
```
public boolean isEqual(MpqScalar x)
```
    Whether this and x have the same value.
  - isEqual
```
public boolean isEqual(Scalar x)
```
    Whether this and x have the same value.
    
    Specified by:
    
    isEqual in class Scalar
  - isEqual
```
public boolean isEqual(int x)
```
    Whether this and x have the same value.
    
    Specified by:
    
    isEqual in class Scalar
  - sgn
```
public int sgn()
```
    Returns the sign of this.
    
    Specified by:
    
    sgn in class Scalar
  - neg
```
public void neg()
```
    Negates this (exact).
    
    Specified by:
    
    neg in class Scalar
  - inv
```
public void inv()
```
    Inverts this (exact).
    
    Specified by:
    
    inv in class Scalar
  - clone
```
public MpqScalar clone()
```
    Returns a copy of this.
    
    Overrides:
    
    clone in class java.lang.Object

Class MpqScalar

Field Summary

Constructor Summary

Method Summary

Methods inherited from class apron.Scalar

Methods inherited from class apron.Coeff

Methods inherited from class java.lang.Object

Field Detail

val

Constructor Detail

MpqScalar

MpqScalar

MpqScalar

MpqScalar

MpqScalar

MpqScalar

MpqScalar

MpqScalar

MpqScalar

Method Detail

copy

set

set

set

set

set

set

set

setInfty

get

toMpq

toMpfr

toDouble

toString

hashCode

isInfty

isZero

cmp

cmp

cmp

isEqual

isEqual

isEqual

sgn

neg

inv

clone