ans  =
 
    1.  
 
-->A=[1 4 7; 2 5 8; 3 6 9]
 A  =
 
    1.    4.    7.  
    2.    5.    8.  
    3.    6.    9.  
 
-->rref(A)
 ans  =
 
    1.    0.  - 1.  
    0.    1.    2.  
    0.    0.    0.  
 
-->B=A'
 B  =
 
    1.    2.    3.  
    4.    5.    6.  
    7.    8.    9.  
 
-->rref(B)
 ans  =
 
    1.    0.  - 1.  
    0.    1.    2.  
    0.    0.    0.  
 
-->W=[1 1; 1 -1]
 W  =
 
    1.    1.  
    1.  - 1.  
 
-->b=[10;2]
 b  =
 
    10.  
    2.   
 
-->M=[W b]
 M  =
 
    1.    1.    10.  
    1.  - 1.    2.   
 
-->rref(M)
 ans  =
 
    1.    0.    6.  
    0.    1.    4.  
 
-->//r2 += -r1
 
-->M(1,2)
 ans  =
 
    1.  
 
-->M(2,:)
 ans  =
 
    1.  - 1.    2.  
 
-->M(2,:)=M(2,:)-M(1,:)
 M  =
 
    1.    1.    10.  
    0.  - 2.  - 8.   
 
-->M(2.
      !--error 3 
Waiting for right parenthesis.

 
 
-->M(2,:)=(-1/2)*M(2,:)
 M  =
 
    1.    1.    10.  
    0.    1.    4.   
 
-->M(1,:)=M(1,:)-M(2,:)
 M  =
 
    1.    0.    6.  
    0.    1.    4.  
 
-->W
 W  =
 
    1.    1.  
    1.  - 1.  
 
-->inverse(W)
           !--error 4 
Undefined variable: inverse

 
 
-->inv(W)
 ans  =
 
    0.5    0.5  
    0.5  - 0.5  
 
-->inv(W)*b
 ans  =
 
    6.  
    4.  
 
-->W^(-1)
 ans  =
 
    0.5    0.5  
    0.5  - 0.5  
 
-->W^2
 ans  =
 
    2.    0.  
    0.    2.  
 
-->W^3
 ans  =
 
    2.    2.  
    2.  - 2.  
 
-->S=[1 2;3 4]
 S  =
 
    1.    2.  
    3.    4.  
 
-->S*S
 ans  =
 
    7.     10.  
    15.    22.  
 
-->S .*S
 ans  =
 
    1.    4.   
    9.    16.  
 
-->x=1:5
 x  =
 
    1.    2.    3.    4.    5.  
 
-->x.*x
 ans  =
 
    1.    4.    9.    16.    25.  
 
-->x.^2
 ans  =
 
    1.    4.    9.    16.    25.  
 
-->x=5:7.7
 x  =
 
    5.    6.    7.  
 
-->x=2:3:10
 x  =
 
    2.    5.    8.  
 
-->zeros(2,3)
 ans  =
 
    0.    0.    0.  
    0.    0.    0.  
 
-->ones(2,3)
 ans  =
 
    1.    1.    1.  
    1.    1.    1.  
 
-->ones(2,3)*%pi
 ans  =
 
    3.1415927    3.1415927    3.1415927  
    3.1415927    3.1415927    3.1415927  
 
-->%pi=7
      !--error 13 
Redefining permanent variable.

 
 
-->t=0:%pi/100:2*%pi;
 
-->size(t)
 ans  =
 
    1.    201.  
 
-->y=sin(t);
 
-->size(y)
 ans  =
 
    1.    201.  
 
-->plot(t,y)
 
-->clf
 
-->plot(t,y,'rx-')
 
-->clf; plot(t,y,'x:m')
 
-->help plot
 
-->e
  !--error 4 
Undefined variable: e

 
 
-->exp(1)
 ans  =
 
    2.7182818  
 
-->k=0.008;
 
-->exp(2k)
        !--error 276 
Missing operator, comma, or semicolon.

 
 
-->exp(2*k)
 ans  =
 
    1.0161287  
 
-->exp(2:10)
 ans  =
 
 
         column 1 to 3
 
    7.3890561    20.085537    54.59815  
 
         column 4 to 6
 
    148.41316    403.42879    1096.6332  
 
         column 7 to 9
 
    2980.958    8103.0839    22026.466  
 
-->exp(20:-1:10)
 ans  =
 
 
         column 1 to 3
 
    4.852D+08    1.785D+08    65659969.  
 
         column 4 to 6
 
    24154953.    8886110.5    3269017.4  
 
         column 7 to 9
 
    1202604.3    442413.39    162754.79  
 
         column 10 to 11
 
    59874.142    22026.466  
 
-->size(exp(20:-1:10))
 ans  =
 
    1.    11.  
 
-->A
 A  =
 
    1.    4.    7.  
    2.    5.    8.  
    3.    6.    9.  
 
-->W
 W  =
 
    1.    1.  
    1.  - 1.  
 
-->b
 b  =
 
    10.  
    2.   
 
-->W\b
 ans  =
 
    6.  
    4.  
 
-->eye(5,5)
 ans  =
 
    1.    0.    0.    0.    0.  
    0.    1.    0.    0.    0.  
    0.    0.    1.    0.    0.  
    0.    0.    0.    1.    0.  
    0.    0.    0.    0.    1.  
 
-->sqrt(-1)
 ans  =
 
    i    
 
-->%i
 %i  =
 
    i    
 
-->%t
 %t  =
 
  T  
 
-->%f
 %f  =
 
  F  
 
-->%s
 %s  =
 
    s   
 
-->for i=1:3:9,
-->i
-->end
 i  =
 
    1.  
 i  =
 
    4.  
 i  =
 
    7.  
 
-->diary(0)