How to create a subset of matrix in R using greater than or less than a certain value of a column?

Subsetting can be required in many different ways, we can say that there might be infinite number of ways for subsetting as it depends on the objective of the bigger or smaller analysis. One such way is subsetting a matrix based on a certain value of column of the matrix. In R, we can easily do the same with the help of subset function as shown in below example.
 Live Demo
M<-matrix(1:100,ncol=10)
M
   [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,]  1  11   21   31   41   51   61   71   81   91
[2,]  2  12   22   32   42   52   62   72   82   92
[3,]  3  13   23   33   43   53   63   73   83   93
[4,]  4  14   24   34   44   54   64   74   84   94
[5,]  5  15   25   35   45   55   65   75   85   95
[6,]  6  16   26   36   46   56   66   76   86   96
[7,]  7  17   27   37   47   57   67   77   87   97
[8,]  8  18   28   38   48   58   68   78   88   98
[9,]  9  19   29   39   49   59   69   79   89   99
[10,] 10 20   30   40   50   60   70   80   90  100
subset(M,M[,1]<6)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 11 21 31 41 51 61 71 81 91
[2,] 2 12 22 32 42 52 62 72 82 92
[3,] 3 13 24 34 44 54 64 74 84 94
[5,] 5 15 25 35 45 55 65 75 85 95
subset(M,M[,1]>6)
  [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 7 17 27 37 47 57 67 77 87 97
[2,] 8 18 28 38 48 58 68 78 88 98
[3,] 9 19 29 39 49 59 69 79 89 99
[4,] 10 20 30 40 50 60 70 80 90 100
subset(M,M[,1]==6)
    [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,]  6   16   26   36   46   56   66   76    86   96
subset(M,M[,1]>3)
  [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 4 14 24 34 44 54 64 74 84 94
[2,] 5 15 25 35 45 55 65 75 85 95
[3,] 6 16 26 36 46 56 66 76 86 96
[4,] 7 17 27 37 47 57 67 77 87 97
[5,] 8 18 28 38 48 58 68 78 88 98
[6,] 9 19 29 39 49 59 69 79 89 99
[7,] 10 20 30 40 50 60 70 80 90 100
subset(M,M[,1]<8)
   [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1   11   21   31   41   51   61   71   81   91
[2,] 2   12   22   32   42   52   62   72   82   92
[3,] 3   13   23   33   43   53   63   73   83   93
[4,] 4   14   24   34   44   54   64   74   84   94
[5,] 5   15   25   35   45   55   65   75   85   95
[6,] 6   16   26   36   46   56   66   76   86 96
[7,] 7   17   27   37   47   57   67   77   87 97
subset(M,M[,2]<20)
  [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,]  1 11 21 31 41 51 61 71 81 91
[2,]  2 12 22 32 42 52 62 72 82 92
[3,]  3 13 23 33 43 53 63 73 83 93
[4,]  4 14 24 34 44 54 64 74 84 94
[5,]  5 15 25 35 45 55 65 75 85 95
[6,]  6 16 26 36 46 56 66 76 86 96
[7,]  7 17 27 37 47 57 67 77 87 97
[8,]  8 18 28 38 48 58 68 78 88 98
[9,]  9 19 29 39 49 59 69 79 89 99
subset(M,M[,2]<25)
    [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1   11    21   31   41   51   61   71   81    91
[2,] 2   12    22   32   42   52   62   72   82    92
[3,] 3   13    23   33   43   53   63   73   83    93
[4,] 4   14    24   34   44   54   64   74   84    94
[5,] 5   15    25   35   45   55   65   75   85 95
[6,] 6   16    26   36   46   56   66   76   86 96
[7,] 7   17    27   37   47   57   67   77   87 97
[8,] 8   18    28   38   48   58   68   78   88 98
[9,] 9   19    29   39   49   59   69   79   89 99
[10,] 10  20   30   40   50   60   70   80   90 100
subset(M,M[,5]>45)
  [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 6 16  26    36   46    56 66 76 86 96
[2,] 7 17  27    37   47    57 67 77 87 97
[3,] 8 18  28   38   48 58 68 78 88 98
[4,] 9 19  29   39   49 59 69 79 89 99
[5,] 10 20 30   40   50 60 70 80 90 100
subset(M,M[,5]>48)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 9 19 29 39 49 59 69 79 89 99
[2,] 10 20 30 40 50 60 70 80 90 100
subset(M,M[,8]>75)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 6 16 26 36 46 56 66 76 86 96
[2,] 7 17 27 37 47 57 67 77 87 97
[3,] 8 18 28 38 48 58 68 78 88 98
[4,] 9 19 29 39 49 59 69 79 89 99
[5,] 10 20 30 40 50 60 70 80 90 100
subset(M,M[,9]>81)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 2 12 22 32 42 52 62 72 82 92
[2,] 3 13 23 33 43 53 63 73 83 93
[3,] 4 14 24 34 44 54 64 74 84 94
[4,] 5 15 25 35 45 55 65 75 85 95
[5,] 6 16 26 36 46 56 66 76 86 96
[6,] 7 17 27 37 47 57 67 77 87 97
[7,] 8 18 28 38 48 58 68 78 88 98
[8,] 9 19 29 39 49 59 69 79 89 99
[9,] 10 20 30 40 50 60 70 80 90 100
subset(M,M[,9]<90)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 11 21 31 41 51 61 71 81 91
[2,] 2 12 22 32 42 52 62 72 82 92
[3,] 3 13 23 33 43 53 63 73 83 93
[4,] 4 14 24 34 44 54 64 74 84 94
[5,] 5 15 25 35 45 55 65 75 85 95
[6,] 6 16 26 36 46 56 66 76 86 96
[7,] 7 17 27 37 47 57 67 77 87 97
[8,] 8 18 28 38 48 58 68 78 88 98
[9,] 9 19 29 39 49 59 69 79 89 99
subset(M,M[,10]<100)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 11 21 31 41 51 61 71 81 91
[2,] 2 12 22 32 42 52 62 72 82 92
[3,] 3 13 23 33 43 53 63 73 83 93
[4,] 4 14 24 34 44 54 64 74 84 94
[5,] 5 15 25 35 45 55 65 75 85 95
[6,] 6 16 26 36 46 56 66 76 86 96
[7,] 7 17 27 37 47 57 67 77 87 97
[8,] 8 18 28 38 48 58 68 78 88 98
[9,] 9 19 29 39 49 59 69 79 89 99
subset(M,M[,10]<96)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 1 11 21 31 41 51 61 71 81 91
[2,] 2 12 22 32 42 52 62 72 82 92
[3,] 3 13 23 33 43 53 63 73 83 93
[4,] 4 14 24 34 44 54 64 74 84 94
[5,] 5 15 25 35 45 55 65 75 85 95