Matlab矩阵运算函数-blkdiag函数

1、blkdiag函数：生成指定对角线元素的矩阵

2、用法说明

     A = blkdiag(a,b,c,d,...) 函数产生以a，b，c，d，...为对角线元素的矩阵A

3、举例说明

>> x = blkdiag(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16)

x =

     1     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0
     0     2     0     0     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     3     0     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     4     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     5     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     6     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     7     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     8     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     9     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0    10     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0    11     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0    12     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0    13     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0     0    14     0     0
     0     0     0     0     0     0     0     0     0     0     0     0     0     0    15     0
     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0    16

4、附录

>> help blkdiag
 blkdiag  Block diagonal concatenation of matrix input arguments.
 
                                    |A 0 .. 0|
    Y = blkdiag(A,B,...)  produces  |0 B .. 0|
                                    |0 0 ..  |
 
    Class support for inputs: 
       float: double, single
 
    See also diag, horzcat, vertcat

    Overloaded methods:
       InputOutputModel/blkdiag

    Reference page in Help browser
       doc blkdiag