If a is a 3×3 matrix, the function of the function mean(a) is ( ).
A: to calculate the average of each row of a
B: to calculate the average of each column of a
C: to increase a row of the average for a
D: to increase a column of the average for a
A: to calculate the average of each row of a
B: to calculate the average of each column of a
C: to increase a row of the average for a
D: to increase a column of the average for a
B
举一反三
- If A is a matrix, the function of the function max(a(:)) is ( ). A: to work out the maximum element of the entire matrix B: function call errors C: to work out the maximum element of each row of the matrix D: to work out the maximum element of each column of the matrix
- If A is a matrix, the function max(A(:)) is ( ). A: to return the first element B: to return the maximum element in each row of the matrix C: to return the maximum element in each column of the matrix D: to return the largest element of the entire matrix
- Int(average(row(A1)+row(D6)))的结果为３。
- 14 In triple sequence table of sparse matrix, each triple represents ( ). A: the row number,column number and data value of non-zero elements in the matrix B: the data value of non-zero elements in the matrix C: the row and column numbers of elements in the matrix D: the row number,column number and data value of elements in the matrix
- Int(average(row(A1)+row(D6)))的结果为（）。 A: 1 B: 2 C: 3 D: 4
内容
- 0
The utility function curve is convexed upwards, indicating that as<br/>the consumption of a certain commodity increases ( ) A: Increased marginal utility B: Increase in total utility C: Diminishing marginal utility D: Increase in average utility
- 1
There will be an increase in tax for those earning in ______of twice the national average wage. (excessive)
- 2
An increase in average temperature by only a few degrees could cause environmental problems ________.
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在Excel2010中，F1单元格的公式为“=Average（$C$3：$C$6）”，把它复制到F2单元格中后，双击它显示：（） A: =Average（C3：C6） B: =Average（$C$3：$C$6） C: =Average（$C$4：$C$7） D: =Average（$C$3：C6）
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Each of our homes is jam-packed with, on average, 26 electronic devices.