If a=[1 4;5 6], c=a<5. Then c=?
A: 0 1 1 0
B: 0 01 1
C: 1 10 0
D: 1 01 0
A: 0 1 1 0
B: 0 01 1
C: 1 10 0
D: 1 01 0
举一反三
- 字母表是 {0, 1},包含01子串的所有串为()。 A: (0|1)*(01)+ B: (0|1)*01 C: (0*010*10*)* D: (0|1)*01(0|1)*
- 【单选题】一个(3,2,1)卷积码的编码器,【图片】【图片】【图片】【图片】【图片】【图片】假设输入X=(1 1 0 1 1 0) ,求编码器编码输出 A. ( 1 10 , 0 00 , 0 01 , 111 , 0 00 , … ) B. ( 1 1 1 , 1 00 , 0 01 , 111 , 0 00 , … ) C. ( 1 1 0 , 1 00 , 1 01 , 111 , 0 00 , … ) D. ( 1 1 1 , 1 00 , 0 01 , 11 0 , 0 00 , … )
- 将下图二进制译码器的真值表补充完整,已知输出为高电平有效,A1A0=00时,Y0有效,A1A0=01时,Y1 有效,A1A0=10时,Y2 有效,A1A0=11时,Y3有效。A1A0Y0 Y1 Y2 Y30 00 11 0 1 1 A: A1A0Y0 Y1 Y2 Y30 00 1 1 10 11 0 1 11 0 1 1 0 11 11 1 1 0 B: A1A0Y0 Y1 Y2 Y30 01 0 0 00 10 1 0 01 0 0 0 1 01 10 0 0 1
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- A = [3 NaN 5 6 7 NaN NaN 9];TF = ismissing(A)则TF=( ) A: 0 1 0 0 0 1 1 0 B: 2 6 7 C: 1 3 4 5 8 D: 以上都不对