Chemical Data Processing Library Python API - Version 1.4.0
Public Member Functions | Properties | List of all members
CDPL.Math.ConstFVectorExpression Class Reference

Represents the outcome of mathematical expressions/operations that result in a vector. More...

+ Inheritance diagram for CDPL.Math.ConstFVectorExpression:

Public Member Functions

int getObjectID ()
 Returns the numeric identifier (ID) of the wrapped C++ class instance. More...
 
bool isEmpty ()
 Tells whether the vector is empty. More...
 
int getSize ()
 Returns the current element count. More...
 
float getElement (int i)
 Returns the element at index i. More...
 
object toArray ()
 Converts the ConstFVectorExpression instance into a corresponding numpy.ndarray object. More...
 
bool __eq__ (ConstFVectorExpression e)
 Returns the result of the comparison operation self == e. More...
 
bool __ne__ (ConstFVectorExpression e)
 Returns the result of the comparison operation self != e. More...
 
float __call__ (int i)
 Returns the element at index i. More...
 
float __getitem__ (int i)
 Returns the element at index i. More...
 
int __len__ ()
 Returns the current element count. More...
 
str __str__ ()
 Returns a string representation of the ConstFVectorExpression instance. More...
 
ConstFVectorExpression __pos__ ()
 Returns self. More...
 
ConstFVectorExpression __neg__ ()
 Returns the result of the operation self * -1. More...
 
ConstFVectorExpression __add__ (ConstFVectorExpression e)
 Returns the result of the addition operation self + e. More...
 
ConstFVectorExpression __sub__ (ConstFVectorExpression e)
 Returns the result of the subtraction operation self - e. More...
 
ConstFVectorExpression __mul__ (float t)
 Returns the result of the multiplication operation self * t. More...
 
ConstFVectorExpression __mul__ (ConstFMatrixExpression e)
 Returns the result of the multiplication operation self * e. More...
 
ConstFVectorExpression __div__ (float t)
 Returns the result of the division operation self // t. More...
 
ConstFVectorExpression __truediv__ (float t)
 Returns the result of the true division operation self / t. More...
 
ConstFVectorExpression __rmul__ (float t)
 Returns the result of the multiplication operation t * self. More...
 

Properties

 objectID = property(getObjectID)
 
 size = property(getSize)
 

Detailed Description

Represents the outcome of mathematical expressions/operations that result in a vector.

Member Function Documentation

◆ getObjectID()

int CDPL.Math.ConstFVectorExpression.getObjectID ( )

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python ConstFVectorExpression instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two ConstFVectorExpression instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns
The numeric ID of the internally referenced C++ class instance.

◆ isEmpty()

bool CDPL.Math.ConstFVectorExpression.isEmpty ( )

Tells whether the vector is empty.

Returns
True if the vector contains no elements, and False otherwise.

◆ getSize()

int CDPL.Math.ConstFVectorExpression.getSize ( )

Returns the current element count.

Returns
The number of elements.

◆ getElement()

float CDPL.Math.ConstFVectorExpression.getElement ( int  i)

Returns the element at index i.

Parameters
iThe zero-based element index.
Returns
The value of the element.
Exceptions
Base.IndexErrorif i is out of range.

◆ toArray()

object CDPL.Math.ConstFVectorExpression.toArray ( )

Converts the ConstFVectorExpression instance into a corresponding numpy.ndarray object.

Returns
The generated numpy.ndarray object.
See also
[NUMPY]

◆ __eq__()

bool CDPL.Math.ConstFVectorExpression.__eq__ ( ConstFVectorExpression  e)

Returns the result of the comparison operation self == e.

Parameters
eThe ConstFVectorExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __ne__()

bool CDPL.Math.ConstFVectorExpression.__ne__ ( ConstFVectorExpression  e)

Returns the result of the comparison operation self != e.

Parameters
eThe ConstFVectorExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __call__()

float CDPL.Math.ConstFVectorExpression.__call__ ( int  i)

Returns the element at index i.

Parameters
iThe zero-based element index.
Returns
The value of the element.
Exceptions
Base.IndexErrorif i is out of range.

◆ __getitem__()

float CDPL.Math.ConstFVectorExpression.__getitem__ ( int  i)

Returns the element at index i.

Parameters
iThe zero-based element index.
Returns
The value of the element.
Exceptions
Base.IndexErrorif i is out of range.

◆ __len__()

int CDPL.Math.ConstFVectorExpression.__len__ ( )

Returns the current element count.

Returns
The number of elements.

◆ __str__()

str CDPL.Math.ConstFVectorExpression.__str__ ( )

Returns a string representation of the ConstFVectorExpression instance.

Returns
The generated string representation.

◆ __pos__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__pos__ ( )

Returns self.

Returns
self.

◆ __neg__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__neg__ ( )

Returns the result of the operation self * -1.

Returns
A ConstFVectorExpression instance holding the result of the element negation.

◆ __add__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__add__ ( ConstFVectorExpression  e)

Returns the result of the addition operation self + e.

Parameters
eSpecifies the second addend.
Returns
A ConstFVectorExpression instance holding the result of the addition.

◆ __sub__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__sub__ ( ConstFVectorExpression  e)

Returns the result of the subtraction operation self - e.

Parameters
eSpecifies the subtrahend.
Returns
A ConstFVectorExpression instance holding the result of the subtraction.

◆ __mul__() [1/2]

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__mul__ ( float  t)

Returns the result of the multiplication operation self * t.

Parameters
tSpecifies the multiplier.
Returns
A ConstFVectorExpression instance holding the result of the multiplication.

◆ __mul__() [2/2]

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__mul__ ( ConstFMatrixExpression  e)

Returns the result of the multiplication operation self * e.

Parameters
eSpecifies the multiplier.
Returns
A ConstFVectorExpression instance holding the result of the multiplication.

◆ __div__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__div__ ( float  t)

Returns the result of the division operation self // t.

Parameters
tSpecifies the divisor.
Returns
A ConstFVectorExpression instance holding the result of the division.

◆ __truediv__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__truediv__ ( float  t)

Returns the result of the true division operation self / t.

Parameters
tSpecifies the divisor.
Returns
A ConstFVectorExpression instance holding the result of the division.

◆ __rmul__()

ConstFVectorExpression CDPL.Math.ConstFVectorExpression.__rmul__ ( float  t)

Returns the result of the multiplication operation t * self.

Parameters
tSpecifies the multiplicand.
Returns
A ConstFVectorExpression instance holding the result of the multiplication.