ans  =
 
    1.  
 
-->A=[1 2 3; 4 5 6]
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->A=[1 2 3; 4 5]
              !--error 6 
Inconsistent row/column dimensions.

 
 
-->A=[1 2 3; 4, 5, 6]
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->a1=[1;4];a2=[2;5];a3=[3;6];
 
-->a1=[1;4],a2=[2;5],a3=[3;6]
 a1  =
 
    1.  
    4.  
 a2  =
 
    2.  
    5.  
 a3  =
 
    3.  
    6.  
 
-->A=[a1 a2 a3]
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->B=[A;A]
 B  =
 
    1.    2.    3.  
    4.    5.    6.  
    1.    2.    3.  
    4.    5.    6.  
 
-->B=[1 0 1; 3 -3 3]
 B  =
 
    1.    0.    1.  
    3.  - 3.    3.  
 
-->A+B
 ans  =
 
    2.    2.    4.  
    7.    2.    9.  
 
-->A
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->B
 B  =
 
    1.    0.    1.  
    3.  - 3.    3.  
 
-->A+B
 ans  =
 
    2.    2.    4.  
    7.    2.    9.  
 
-->A-B
 ans  =
 
    0.    2.    2.  
    1.    8.    3.  
 
-->5*A
 ans  =
 
    5.     10.    15.  
    20.    25.    30.  
 
-->5 A
     !--error 276 
Missing operator, comma, or semicolon.

 
 
-->5A
    !--error 276 
Missing operator, comma, or semicolon.

 
 
-->A(2,3)
 ans  =
 
    6.  
 
-->A
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->A(2,:)
 ans  =
 
    4.    5.    6.  
 
-->a1=A(:,1)
 a1  =
 
    1.  
    4.  
 
-->a2=A(:,2)
 a2  =
 
    2.  
    5.  
 
-->A(:,:)
 ans  =
 
    1.    2.    3.  
    4.    5.    6.  
 
-->A(:,[1,3])
 ans  =
 
    1.    3.  
    4.    6.  
 
-->ans
 ans  =
 
    1.    3.  
    4.    6.  
 
-->x=0:5
 x  =
 
    0.    1.    2.    3.    4.    5.  
 
-->x=0:2:5
 x  =
 
    0.    2.    4.  
 
-->x=0:-2:-5
 x  =
 
    0.  - 2.  - 4.  
 
-->A*B
    !--error 10 
Inconsistent multiplication.

 
 
-->A,B
 A  =
 
    1.    2.    3.  
    4.    5.    6.  
 B  =
 
    1.    0.    1.  
    3.  - 3.    3.  
 
-->A^T
    !--error 4 
Undefined variable: T

 
 
-->help transpose
 
-->A'
 ans  =
 
    1.    4.  
    2.    5.  
    3.    6.  
 
-->A'*B
 ans  =
 
    13.  - 12.    13.  
    17.  - 15.    17.  
    21.  - 18.    21.  
 
-->B*A'
 ans  =
 
    4.    10.  
    6.    15.  
 
-->A=(:,1:2)
          !--error 41 
Incompatible output argument.

 
 
-->A=A(:,1:2)
 A  =
 
    1.    2.  
    4.    5.  
 
-->B=[11 1; 3 -3]
 B  =
 
    11.    1.  
    3.   - 3.  
 
-->A*B,B*A
 ans  =
 
    17.  - 5.   
    59.  - 11.  
 ans  =
 
    15.    27.  
  - 9.   - 9.   
 
-->A .* B
 ans  =
 
    11.    2.   
    12.  - 15.  
 
-->A*B, [A*B(:,1)  A*B(:,2)]
 ans  =
 
    17.  - 5.   
    59.  - 11.  
 ans  =
 
    17.  - 5.   
    59.  - 11.  
 
-->(A*B)'
 ans  =
 
    17.    59.  
  - 5.   - 11.  
 
-->A'*B'
 ans  =
 
    15.  - 9.  
    27.  - 9.  
 
-->B'*A'
 ans  =
 
    17.    59.  
  - 5.   - 11.  
 
-->x=1:5'
 x  =
 
    1.    2.    3.    4.    5.  
 
-->x=(1:5)'
 x  =
 
    1.  
    2.  
    3.  
    4.  
    5.  
 
-->x'*x
 ans  =
 
    55.  
 
-->norm(x)
 ans  =
 
    7.4161985  
 
-->sqrt(x'*x)
 ans  =
 
    7.4161985  
 
-->A
 A  =
 
    1.    2.  
    4.    5.  
 
-->det(A)
 ans  =
 
  - 3.  
 
-->C=[A A; B B]
 C  =
 
    1.     2.    1.     2.  
    4.     5.    4.     5.  
    11.    1.    11.    1.  
    3.   - 3.    3.   - 3.  
 
-->det(C)
 ans  =
 
    0.  
 
-->C(4,4)=0
 C  =
 
    1.     2.    1.     2.  
    4.     5.    4.     5.  
    11.    1.    11.    1.  
    3.   - 3.    3.     0.  
 
-->det(C)
 ans  =
 
    0.  
 
-->C(2,4)=0
 C  =
 
    1.     2.    1.     2.  
    4.     5.    4.     0.  
    11.    1.    11.    1.  
    3.   - 3.    3.     0.  
 
-->det(C)
 ans  =
 
    0.  
 
-->C=1:4*(1*4)'
 C  =
 
 
         column 1 to 7
 
    1.    2.    3.    4.    5.    6.    7.  
 
         column  8 to 13
 
    8.    9.    10.    11.    12.    13.  
 
         column 14 to 16
 
    14.    15.    16.  
 
-->C=(1:4)*(1*4)'
 C  =
 
    4.    8.    12.    16.  
 
-->C=(1:4)*(1:4)'
 C  =
 
    30.  
 
-->C=(1:4)'*(1:4)
 C  =
 
    1.    2.    3.     4.   
    2.    4.    6.     8.   
    3.    6.    9.     12.  
    4.    8.    12.    16.  
 
-->det(C)
 ans  =
 
    0.  
 
-->rand(4,4)
 ans  =
 
 
         column 1 to 3
 
    0.2113249    0.6653811    0.8782165  
    0.7560439    0.6283918    0.0683740  
    0.0002211    0.8497452    0.5608486  
    0.3303271    0.6857310    0.6623569  
 
         column 4
 
    0.7263507  
    0.1985144  
    0.5442573  
    0.2320748  
 
-->det(rand(4,4))
 ans  =
 
    0.0040422  
 
-->[X,D]=spec(rand(4,4))
 D  =
 
 
         column 1 to 3
 
    1.5020958    0            0          
    0          - 0.0404257    0          
    0            0            0.2482142  
    0            0            0          
 
         column 4
 
    0          
    0          
    0          
    0.5166770  
 X  =
 
 
         column 1 to 3
 
  - 0.1824087  - 0.3944581  - 0.4215009  
  - 0.5971451  - 0.5233140    0.8864474  
  - 0.4543152    0.2293338  - 0.1525080  
  - 0.6354074    0.7196883    0.1152795  
 
         column 4
 
    0.2796140  
  - 0.7116806  
    0.5131368  
  - 0.3898940  
 
-->eye(2,2)
 ans  =
 
    1.    0.  
    0.    1.  
 
-->size(C)
 ans  =
 
    4.    4.  
 
-->size(x)
 ans  =
 
    5.    1.  
 
-->diary(0)