If a is known to be a 2×3 matrix, then after executing a=a(:), ( ).
A: a transforms to a column vector
B: a transforms to 3 rows and 2 columns
C: a transforms to 3 rows and 3 columns
D: a transforms to 2 rows 3 and columns
A: a transforms to a column vector
B: a transforms to 3 rows and 2 columns
C: a transforms to 3 rows and 3 columns
D: a transforms to 2 rows 3 and columns
举一反三
- If it is known that A is a 3×5 matrix, after executing A(:,1:2:3)=[], ( ). A: A becomes row vector B: A becomes 3 rows and 3 columns C: A becomes 3 rows and 2 columns D: A becomes 2 rows and 3 columns
- The 2-D DFT can be computed by computing 1-D DFT transforms along the rows of the image, followed by 1-D transforms along the columns of the result.
- depend on following three-player game, where player 1 chooses rows, player 2 columns and player 3 matrices What’s Nash equilibrium of this game?https://image.zhihuishu.com/zhs/onlineexam/ueditor/201912/986ba5e2a3164a73ae00db6d03e3e868.png
- Which of the following are the types of columns encountered in gas chromatography?(1) flat plates (2) packed columns (3) plastic strips (4) open tubular, or capillary columns A: 1,2 B: 3, 4 C: 1, 3 D: 2,4
- A query that uses rows and columns in a table for statistics is a cross-tab query.