>> x=[1 2 3;4 5 6;7 8 9]
x =
1 2 3
4 5 6
7 8 9
>> y=[1,2,3]
y =
1 2 3
>> y=[1,2,3
4,5,6
7,8,9]
y =
1 2 3
4 5 6
7 8 9
>> u=zeros(2,3)
u =
0 0 0
0 0 0
>> ones(3,2)
ans =
1 1
1 1
1 1
>> rand(3,4)
ans =
0.9572 0.1419 0.7922 0.0357
0.4854 0.4218 0.9595 0.8491
0.8003 0.9157 0.6557 0.9340
>> v=eye(size(x))
v =
1 0 0
0 1 0
0 0 1
>> tril(triu(x))
ans =
1 0 0
0 5 0
0 0 9
>> a=[x,x+1;x-1,-x]
a =
1 2 3 2 3 4
4 5 6 5 6 7
7 8 9 8 9 10
0 1 2 -1 -2 -3
3 4 5 -4 -5 -6
6 7 8 -7 -8
>> x1=1:5
x1 =
1 2 3 4 5
>> x1=1:2:6
x1 =
1 3 5
A =
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
>> B=reshape(A,2,8)
B =
16 9 2 7 3 6 13 12
5 4 11 14 10 15 8 1
>> B=repmat(A,2,8)
B =
1 至 14 列
16 2 3 13 16 2 3 13 16 2 3 13 16 2
5 11 10 8 5 11 10 8 5 11 10 8 5 11
9 7 6 12 9 7 6 12 9 7 6 12 9 7
4 14 15 1 4 14 15 1 4 14 15 1 4 14
16 2 3 13 16 2 3 13 16 2 3 13 16 2
5 11 10 8 5 11 10 8 5 11 10 8 5 11
9 7 6 12 9 7 6 12 9 7 6 12 9 7
4 14 15 1 4 14 15 1 4 14 15 1 4 14
15 至 28 列
3 13 16 2 3 13 16 2 3 13 16 2 3 13
10 8 5 11 10 8 5 11 10 8 5 11 10 8
6 12 9 7 6 12 9 7 6 12 9 7 6 12
15 1 4 14 15 1 4 14 15 1 4 14 15 1
3 13 16 2 3 13 16 2 3 13 16 2 3 13
10 8 5 11 10 8 5 11 10 8 5 11 10 8
6 12 9 7 6 12 9 7 6 12 9 7 6 12
15 1 4 14 15 1 4 14 15 1 4 14 15 1
29 至 32 列
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
>> a=[2 3;4 5;6 7];b=ones(3,1)
b =
1
1
1
>> a
a =
2 3
4 5
6 7
>> c=[a b],d=[b a]
c =
2 3 1
4 5 1
6 7 1
d =
1 2 3
1 4 5
1 6 7
>> u=c+d,v=c-d
u =
3 5 4
5 9 6
7 13 8
v =
1 1 -2
3 1 -4
5 1 -6
>> c*b
ans =
6
10
14
>> c.*d
ans =
2 6 3
4 20 5
6 42 7
>> a
ans =
-1.0000
1.0000
>> ones(1,2)/a
ans =
-0.2500 0 0.2500
>> u=c.d,v=d./c
u =
0.5000 0.6667 3.0000
0.2500 0.8000 5.0000
0.1667 0.8571 7.0000
v =
0.5000 0.6667 3.0000
0.2500 0.8000 5.0000
0.1667 0.8571 7.0000
>> u=c.^d,v=c.^2,w=2.^c
u =
2 9 1
4 625 1
6 117649 1
v =
4 9 1
16 25 1
36 49 1
w =
4 8 2
16 32 2
64 128 2
>> d^2
ans =
6 28 34
10 48 58
14 68 82