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.
内容
- 0
假设数据集中“数量”是第5个字段,下面()能得到第3条记录的数量。 A: Ds.Tables[0].Rows[3][4].ToString B: Ds.Tables[0].Rows[2][4].ToString C: Ds.Tables[0].Rows[2][5].ToString D: Ds.Tables[0].Rows[3][5].ToString
- 1
Which one is right about wavelet transforms? A: Wavelet transforms store large fractions of the strongest of the wavelet coefficients. B: Wavelet transforms are completely different from discrete Fourier transform (DFT). C: Each transform has 2 functions: smoothing, difference. D: Wavelet transforms means applying to pairs of data, resulting in two set of data of length L.
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Resolution typically is(71)2 in dots per inch(dpi), and is stated as the number of columns and rows of dots. A: computed B: stack C: measured D: searched
- 3
How many rows of piles are generally set up in freestyle skating competition? How many piles per row? A: row 5 and 25 B: rows 2 and 18 C: rows 1 and 30 D: rows 3 and 20
- 4
Which statement below initializes array items to contain 3 rows and 2 columns? ( ) A: int[][] items = {{2, 4}, {6, 8}, {10, 12}}; B: int[][] items = {{2, 6, 10}, {4, 8, 12}}; C: int[][] items = {2, 4}, {6, 8}, {10, 12}; D: int[][] items = {2, 6, 10}, {4, 8, 12};