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Class JSci.maths.DoubleVector

java.lang.Object
   |
   +----JSci.maths.MathVector
           |
           +----JSci.maths.DoubleVector

public class DoubleVector

extends MathVector

ARRAY_1D

Storage format identifier.

storageFormat

vector

Array containing the components of the vector.

DoubleVector(double[])

Constructs a vector by wrapping an array.

DoubleVector(int)

Constructs an empty vector.

add(AbelianGroupMember)

Returns the addition of this vector and another.

add(DoubleVector)

Returns the addition of this vector and another.

dimension()

Returns the vector's dimension.

equals(Object)

Compares two double vectors for equality.

getComponent(int)

Returns a component of this vector.

hashCode()

Returns a hashcode for this vector.

infNorm()

Returns the l(infinity)-norm.

mapComponents(Mapping)

Applies a function on all the vector components.

negate()

Returns the negative of this vector.

norm()

Returns the l2-norm (magnitude).

norm(int)

Returns the ln-norm.

scalarDivide(double)

Returns the division of this vector by a scalar.

scalarMultiply(double)

Returns the multiplication of this vector by a scalar.

scalarMultiply(RingMember)

Returns the multiplication of this vector by a scalar.

scalarProduct(DoubleVector)

Returns the scalar product of this vector and another.

setComponent(int, double)

Sets the value of a component of this vector.

subtract(AbelianGroupMember)

Returns the subtraction of this vector by another.

subtract(DoubleVector)

Returns the subtraction of this vector by another.

toComplexVector()

Converts this vector to a complex vector.

toIntegerVector()

Converts this vector to an integer vector.

toString()

Returns a comma delimited string representing the value of this vector.

 protected static final int ARRAY_1D

Storage format identifier.

 protected static final int storageFormat

 protected double vector[]

Array containing the components of the vector.

 public DoubleVector(int dim)

Constructs an empty vector.

Parameters:

dim - the dimension of the vector.

 public DoubleVector(double array[])

Constructs a vector by wrapping an array.

Parameters:

array - an assigned value

 public boolean equals(Object a)

Compares two double vectors for equality.

Parameters:

a - a double vector

Overrides:

equals in class Object

 public String toString()

Returns a comma delimited string representing the value of this vector.

Overrides:

toString in class Object

 public int hashCode()

Returns a hashcode for this vector.

Overrides:

hashCode in class Object

 public IntegerVector toIntegerVector()

Converts this vector to an integer vector.

Returns:

an integer vector

 public ComplexVector toComplexVector()

Converts this vector to a complex vector.

Returns:

a complex vector

 public double getComponent(int n)

Returns a component of this vector.

Parameters:

n - index of the vector component

Throws: VectorDimensionException

If attempting to access an invalid component.

 public void setComponent(int n,
                          double x)

Sets the value of a component of this vector.

Parameters:

n - index of the vector component

x - a number

Throws: VectorDimensionException

If attempting to access an invalid component.

 public int dimension()

Returns the vector's dimension.

Overrides:

dimension in class MathVector

 public double norm(int n)

Returns the ln-norm.

 public double norm()

Returns the l2-norm (magnitude).

Overrides:

norm in class MathVector

 public double infNorm()

Returns the l(infinity)-norm.

 public AbelianGroupMember negate()

Returns the negative of this vector.

Overrides:

negate in class MathVector

 public AbelianGroupMember add(AbelianGroupMember v)

Returns the addition of this vector and another.

Overrides:

add in class MathVector

 public DoubleVector add(DoubleVector v)

Returns the addition of this vector and another.

Parameters:

v - a double vector

Throws: VectorDimensionException

If the vectors are different sizes.

 public AbelianGroupMember subtract(AbelianGroupMember v)

Returns the subtraction of this vector by another.

Overrides:

subtract in class MathVector

 public DoubleVector subtract(DoubleVector v)

Returns the subtraction of this vector by another.

Parameters:

v - a double vector

Throws: VectorDimensionException

If the vectors are different sizes.

 public ModuleMember scalarMultiply(RingMember x)

Returns the multiplication of this vector by a scalar.

Overrides:

scalarMultiply in class MathVector

 public DoubleVector scalarMultiply(double x)

Returns the multiplication of this vector by a scalar.

Parameters:

x - a double

 public DoubleVector scalarDivide(double x)

Returns the division of this vector by a scalar.

Parameters:

x - a double

Throws: ArithmeticException

If divide by zero.

 public double scalarProduct(DoubleVector v)

Returns the scalar product of this vector and another.

Parameters:

v - a double vector

Throws: VectorDimensionException

If the vectors are different sizes.

 public DoubleVector mapComponents(Mapping f)

Applies a function on all the vector components.

Parameters:

f - a user-defined function

Returns:

a double vector

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