= k⌈ ⌉ = ⌊ ⌋ k k k k ⌈ ⌉ ⌈ ⌉ ⌈ ⌉ ⌊ ⌋ ⌊ ⌋ ⌈ ⌉ ⌈ ⌉ ⌊ ⌋ ⌊ ⌋ ⌊ ⌋ k

 k  =
k11
k21
k31
k41
k51
k61
k12
k22
k32
k42
k52
k62
k13
k23
k33
k43
k53
k63
 k  =
k11
k21
k31
k12
k22
k32
k13
k23
k33
 k  =
k14
k24
k34
k15
k25
k35
k16
k26
k36
A
 k21
 =
k41
k51
k61
k42
k52
k62
k43
k53
k63
A
 k 22
 =
k44
k54
k64
k45
k55
k65
k46
k56
k66
A
A
11
A
12
k14
k24
k34
k44
k54
k64
k15
k25
k35
k45
k55
k65
k16
k26
k36
k46
k56
k66
  k11A 
 
= 
  k21A 
 
 k12A  

A
 k22  
