14.2.15 Class Expression¶
- mosek.fusion.Expression¶
Abstract base class for all objects which can be used as linear expressions of the form \(Ax+b.\)
The main use of this class is to store the result of expressions created by the static methods provided by
Expr
.- Members
Expression.Eval – Evaluate the expression and push the result onto the work stack.
Expression.GetDim – Return the d’th dimension in the expression.
Expression.GetND – Return the number of dimensions in the expression.
Expression.GetShape – Get the shape of the expression.
Expression.GetSize – Return the total number of elements in the expression (the product of the dimensions).
Expression.Index – Get a single element in the expression.
Expression.Pick – Pick a number of elements from the expression.
Expression.Slice – Get a slice of the expression.
Expression.ToString – Return a string representation of the expression object.
- Implemented by
- Expression.Eval¶
void Eval(WorkStack rs, WorkStack ws, WorkStack xs)
Evaluate the expression and push the result onto the
rs
work stack.
- Expression.GetDim¶
int GetDim(int d)
Return the d’th dimension in the expression.
- Parameters
d
(int
)- Return
(
int
)
- Expression.GetND¶
int GetND()
Return the number of dimensions in the expression.
- Return
(
int
)
- Expression.GetShape¶
int[] GetShape()
Get the shape of the expression.
- Return
(
int
[])
- Expression.GetSize¶
long GetSize()
Return the total number of elements in the expression (the product of the dimensions).
- Return
(
long
)
- Expression.Index¶
Expression Index(int i) Expression Index(int[] indexes)
Get a single element in the expression.
- Parameters
i
(int
) – Index of the element to pick.indexes
(int
[]) – Multi-dimensional index of the element to pick.
- Return
- Expression.Pick¶
Expression Pick(int[] indexes) Expression Pick(int[,] indexrows)
Picks a number of elements from the expression and returns them as a one-dimensional expression.
- Parameters
indexes
(int
[]) – Indexes of the elements to pickindexrows
(int
[,]) – Indexes of the elements to pick. Each row defines a separate multi-dimensional index.
- Return
- Expression.Slice¶
Expression Slice(int first, int last) Expression Slice(int[] firsta, int[] lasta)
Get a slice of the expression.
- Parameters
first
(int
) – Index of the first element in the slice.last
(int
) – Index of the last element in the slice plus one.firsta
(int
[]) – Multi-dimensional index of the first element in the slice.lasta
(int
[]) – Multi-dimensional index of the element after the end of the slice.
- Return
- Expression.ToString¶
string ToString()
Return a string representation of the expression object.
- Return
(
string
)