已知序列x[k]={2,1,-2,1;k=0,1,2,3},则该序列的自相关函数Rx[n]为: A: {2,-3,-2,10,-2,-3,2;n=-3,-2,-1,0,1,2,3} B: {2,-3,-2,10,2,-3,2;n=-3,-2,-1,0,1,2,3} C: {-2,-3,2,8,2,-3,-2;n=-3,-2,-1,0,1,2,3} D: {-2,-3,2,10,-2,-3,-2;n=-3,-2,-1,0,1,2,3}
已知序列x[k]={2,1,-2,1;k=0,1,2,3},则该序列的自相关函数Rx[n]为: A: {2,-3,-2,10,-2,-3,2;n=-3,-2,-1,0,1,2,3} B: {2,-3,-2,10,2,-3,2;n=-3,-2,-1,0,1,2,3} C: {-2,-3,2,8,2,-3,-2;n=-3,-2,-1,0,1,2,3} D: {-2,-3,2,10,-2,-3,-2;n=-3,-2,-1,0,1,2,3}
(1)(8)10=()2 (2)(27)10=()2 (2)(31)10=()2 (4)(100)10=()2
(1)(8)10=()2 (2)(27)10=()2 (2)(31)10=()2 (4)(100)10=()2
(123)10 =(?)2 A: (123)10 =(1111011)2 B: (123)10 =(1101111)2 C: (123)10 =(1110011)2 D: (123)10 =(0111011)2
(123)10 =(?)2 A: (123)10 =(1111011)2 B: (123)10 =(1101111)2 C: (123)10 =(1110011)2 D: (123)10 =(0111011)2
转换下列十进制数为等值的二进制数:(1)(51)10=(110011)2(2)(102)10=(1100110)2(3)(204)10=(11001100)2(4)(64)10=(1000000)2(5)(4096)10=(1000000000000)2(6)(51/4)10=(1100.11)2(7)(102/8)10=(1100.110)2(8)(204/1024)10=(0.0011001100)2(9)(0.375)10=(0.011)2(10)(0.4375)10=(0.0111)2(11)(2048.0625)10=(100000000000.0001)2(12)(28-1)10=(11111111)2
转换下列十进制数为等值的二进制数:(1)(51)10=(110011)2(2)(102)10=(1100110)2(3)(204)10=(11001100)2(4)(64)10=(1000000)2(5)(4096)10=(1000000000000)2(6)(51/4)10=(1100.11)2(7)(102/8)10=(1100.110)2(8)(204/1024)10=(0.0011001100)2(9)(0.375)10=(0.011)2(10)(0.4375)10=(0.0111)2(11)(2048.0625)10=(100000000000.0001)2(12)(28-1)10=(11111111)2
(3B6D.14)()16()=(?)()2()(1100100101.0101)()2()=(?)()8()(239.375)()10()=(?)()2()(365.5)()8()=(?)()10()(115.4375)()10()=(?)()2()=(?)()8()=(?)()16()(2A.3C)()16()=(?)()10()=(?)()2()(126.75)()8()=(?)()16()=(?)()2()(1001101.10101)()2()=(?)()16()=(?)()8
(3B6D.14)()16()=(?)()2()(1100100101.0101)()2()=(?)()8()(239.375)()10()=(?)()2()(365.5)()8()=(?)()10()(115.4375)()10()=(?)()2()=(?)()8()=(?)()16()(2A.3C)()16()=(?)()10()=(?)()2()(126.75)()8()=(?)()16()=(?)()2()(1001101.10101)()2()=(?)()16()=(?)()8
进制转换: 9 = (________)2 15 = (________)2 (0110)2 = (_______)10 (1000)2 = (_______)10
进制转换: 9 = (________)2 15 = (________)2 (0110)2 = (_______)10 (1000)2 = (_______)10
(78)10=( )2,(1011011)2=( )10,(95)10=( )16,(AC)16=( )2,(78)10=( )8421BCD。
(78)10=( )2,(1011011)2=( )10,(95)10=( )16,(AC)16=( )2,(78)10=( )8421BCD。
(25)10 = ( )2 ;( 14 )10 = ( )2
(25)10 = ( )2 ;( 14 )10 = ( )2
(101000111)2 =(____)10;(79)10 =(____________ )2 。
(101000111)2 =(____)10;(79)10 =(____________ )2 。
(12)10=( )2, ( 1101)2=(__)10。
(12)10=( )2, ( 1101)2=(__)10。