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tools:matrix:start

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tools:matrix:start [2021/11/14 17:15] – [Matrix Operations] ursgraftools:matrix:start [2022/04/07 12:25] – [Accessing Elements] ursgraf
Line 17: Line 17:
 <code cpp> <code cpp>
 Matrix<3, 3, int> m;  Matrix<3, 3, int> m; 
-m << 1, 4, 7, +m << 1, 2, 3, 
-     2, 5, 8, +     4, 5, 6, 
-     3, 6, 9;+     7, 8, 9;
 </code> </code>
 The first three numbers will be filled into the first colon. While the internal representation is simply a one dimensional vector, the matrix could be visualized as  The first three numbers will be filled into the first colon. While the internal representation is simply a one dimensional vector, the matrix could be visualized as 
Line 32: Line 32:
 <code cpp> <code cpp>
 m.get(0,0);  // returns element, 1 m.get(0,0);  // returns element, 1
-m.getRow(1);  // returns row, [2,5,8] +m.get(1,0);  // returns element, 4 
-m.getCol(0);  // returns column, [1,2,3]' +m.getRow(1);  // returns row, [4,5,6] 
-m.getSubMatrix<2,2>(0,1);   // returns matrix [[4,5][7,8]]+m.getCol(0);  // returns column, [1,4,7]' 
 +m.getSubMatrix<2,2>(0,1);   // returns matrix [[2,5][3,6]]
 </code> </code>
 Single elements, rows or columns can be written with the methods //set()//, //setRow()//, or //setCol()//.  Single elements, rows or columns can be written with the methods //set()//, //setRow()//, or //setCol()//. 
tools/matrix/start.txt · Last modified: 2022/04/20 13:29 by ursgraf