重復(fù)矩陣

語法

B = repmat(A,n)
B = repmat(A,r1,...,rN)
B = repmat(A,r)

將A的內(nèi)容，放在m*n的矩陣中

例子

A = repmat(10,3,2)
A = 3×2

    10    10
    10    10
    10    10

A = diag([100 200 300])
A = 3×3

   100     0     0
     0   200     0
     0     0   300
B = repmat(A,2)
B = 6×6

   100     0     0   100     0     0
     0   200     0     0   200     0
     0     0   300     0     0   300
   100     0     0   100     0     0
     0   200     0     0   200     0
     0     0   300     0     0   300

A = diag([100 200 300])
A = 3×3

   100     0     0
     0   200     0
     0     0   300
B = repmat(A,2,3)
B = 6×9

   100     0     0   100     0     0   100     0     0
     0   200     0     0   200     0     0   200     0
     0     0   300     0     0   300     0     0   300
   100     0     0   100     0     0   100     0     0
     0   200     0     0   200     0     0   200     0
     0     0   300     0     0   300     0     0   300