A class for 2D arrays stored in column-major (Fortran-compatible) form.
In this form, the data entry for an n row, m col matrix is
index = i + (n-1) * j
where
J(i,j) = data_start + index
i = row
j = column
Definition at line 31 of file Array.h.
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| | Array2D ()=default |
| | Default constructor.
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| | Array2D (const size_t m, const size_t n, const double v=0.0) |
| | Constructor.
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| | Array2D (const size_t m, const size_t n, span< const double > values) |
| | Constructor.
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| | Array2D (const Array2D &y) |
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| Array2D & | operator= (const Array2D &y) |
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| virtual void | resize (size_t n, size_t m, double v=0.0) |
| | Resize the array, and fill the new entries with 'v'.
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| void | appendColumn (span< const double > c) |
| | Append a column to the existing matrix using a std vector.
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| void | setRow (size_t n, span< const double > rw) |
| | Set the nth row to array rw.
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| void | getRow (size_t n, span< double > rw) const |
| | Get the nth row and return it in a vector.
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| void | setColumn (size_t m, span< const double > col) |
| | Set the values in column m to those in array col.
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| void | getColumn (size_t m, span< double > col) const |
| | Get the values in column m.
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| void | zero () |
| | Set all of the entries to zero.
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| double & | operator() (size_t i, size_t j) |
| | Allows setting elements using the syntax A(i,j) = x.
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| double | operator() (size_t i, size_t j) const |
| | Allows retrieving elements using the syntax x = A(i,j).
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| double & | value (size_t i, size_t j) |
| | Returns a changeable reference to position in the matrix.
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| double | value (size_t i, size_t j) const |
| | Returns the value of a single matrix entry.
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| size_t | nRows () const |
| | Number of rows.
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| size_t | nColumns () const |
| | Number of columns.
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| vector< double > & | data () |
| | Return a reference to the data vector.
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| const vector< double > & | data () const |
| | Return a const reference to the data vector.
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void | operator*= (double a) |
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| span< double > | col (size_t j) |
| | Return a writable span over column j.
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| span< const double > | col (size_t j) const |
| | Return a read-only span over column j.
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1.9.7