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diff --git a/math2373/lab2.txt b/math2373/lab2.txt
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--- a/math2373/lab2.txt
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@@ -1,1024 +0,0 @@
-format rational
-A=[2 -1 4 -5 19; -1 3 -2 -1 -18; 0 1 5 -6 12; 3 -8 1 0 29]
-
-A =
-
- 2 -1 4 -5 19
- -1 3 -2 -1 -18
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-
-
-A(1,:)=A(1,:)+A(2,:)
-
-A =
-
- 1 2 2 -6 1
- -1 3 -2 -1 -18
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-
-A(2,:)=A(2,:)+A(1,:)
-
-A =
-
- 1 2 2 -6 1
- 0 5 0 -7 -17
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-A(4,:)=A(4,:)-3*A(1,:)
-
-A =
-
- 1 2 2 -6 1
- 0 5 0 -7 -17
- 0 1 5 -6 12
- 0 -14 -5 18 26
-
-A(2,:)=A(2,:)-4*A(3,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 1 5 -6 12
- 0 -14 -5 18 26
-
-A(3,:)=A(2,:)-A(3,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 -14 -5 18 26
-
-
-A(4,:)=A(2,:)+14*A(2,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 15 -300 255 -975
-
-A(4,:)=A(2,:)-14*A(2,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 -13 260 -221 845
-
-A =
- A =
- ↑
-{Error: Invalid expression. Check for missing or extra characters.
-}
-A = Aog
-
-A =
-
- 2 -1 4 -5 19
- -1 3 -2 -1 -18
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-A(1,:)=A(1,:)+A(2,:)
-
-A =
-
- 1 2 2 -6 1
- -1 3 -2 -1 -18
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-A(2,:)=A(2,:)+A(1,:)
-
-A =
-
- 1 2 2 -6 1
- 0 5 0 -7 -17
- 0 1 5 -6 12
- 3 -8 1 0 29
-
-A(4,:)=A(4,:)-3*A(1,:)
-
-A =
-
- 1 2 2 -6 1
- 0 5 0 -7 -17
- 0 1 5 -6 12
- 0 -14 -5 18 26
-
-Aog2=a
-{Undefined function or variable 'a'.
-}
-Aog2=A
-
-Aog2 =
-
- 1 2 2 -6 1
- 0 5 0 -7 -17
- 0 1 5 -6 12
- 0 -14 -5 18 26
-
-A(2,:)=A(2,:)-4*A(3,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 1 5 -6 12
- 0 -14 -5 18 26
-
-A(3,:)=A(2,:)-A(3,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 -14 -5 18 26
-
-A(4,:)=A(4,:)+14*A(2,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 0 -285 256 -884
-
-Aog3=A
-
-Aog3 =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 -25 23 -77
- 0 0 -285 256 -884
-
-A(3,:)=A(3,:)/-25
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 -285 256 -884
-
-A(4,:)=A(4,:)+285*A(3,:)
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 -31/5 -31/5
-
-A(4,:)=A(4,:)*5
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 -31 -31
-
-A(4,:)=A(4,:)/-31
-
-A =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-Aref=A
-
-Aref =
-
- 1 2 2 -6 1
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(1,:)=A(1,:)-2*A(2,:)
-
-A =
-
- 1 0 42 -40 131
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(1,:)=A(1,:)-42*A(3,:)
-
-A =
-
- 1 0 0 -34/25 41/25
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(2,:)=A(2,:)-20*A(3,:)
-
-A =
-
- 1 0 0 -34/25 41/25
- 0 1 -40 177/5 -633/5
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(2,:)=A(2,:)+20*A(3,:)
-
-A =
-
- 1 0 0 -34/25 41/25
- 0 1 -20 17 -65
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(2,:)=A(2,:)+20*A(3,:)
-
-A =
-
- 1 0 0 -34/25 41/25
- 0 1 0 -7/5 -17/5
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(1,:)=A(1,:)+(34/25)*A(5,:)
-{Index in position 1 exceeds array bounds (must not exceed 4).
-}
-A(1,:)=A(1,:)+(34/25)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 -7/5 -17/5
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(2,:)=A(2,:)+(7/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)+(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 92/25 192/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)-(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)-(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -138/25 -38/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)+(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)-(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -138/25 -38/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)+(23/5)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 -23/25 77/25
- 0 0 0 1 1
-
-A(3,:)=A(3,:)+(23/25)*A(4,:)
-
-A =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 * 4
- 0 0 0 1 1
-
-Aans=A
-
-Aans =
-
- 1 0 0 * 3
- 0 1 0 * -2
- 0 0 1 * 4
- 0 0 0 1 1
-
-diary off
-rref(Aog)
-
-ans =
-
- 1 0 0 0 3
- 0 1 0 0 -2
- 0 0 1 0 4
- 0 0 0 1 1
-
-diary off
-format rational
-A=[-2 1 9 1; 3 3 -4 2; 1 4 5 5]
-
-A =
-
- Columns 1 through 3
-
- -2 1 9
- 3 3 -4
- 1 4 5
-
- Column 4
-
- 1
- 2
- 5
-
-Asave=A
-
-Asave =
-
- Columns 1 through 3
-
- -2 1 9
- 3 3 -4
- 1 4 5
-
- Column 4
-
- 1
- 2
- 5
-
-a=A
-
-a =
-
- Columns 1 through 3
-
- -2 1 9
- 3 3 -4
- 1 4 5
-
- Column 4
-
- 1
- 2
- 5
-
-a([1 3],:)=a([3 1],:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 3 3 -4
- -2 1 9
-
- Column 4
-
- 5
- 2
- 1
-
-a(2,:)=a(2,:)-3+a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 1 4 -2
- -2 1 9
-
- Column 4
-
- 5
- 4
- 1
-
-a(2,:)=a(2,:)+3-a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 3 3 -4
- -2 1 9
-
- Column 4
-
- 5
- 2
- 1
-
-a(2,:)=a(2,:)-3*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 0 -9 -19
- -2 1 9
-
- Column 4
-
- 5
- -13
- 1
-
-a(3,:)=a(3,:)+2*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 0 -9 -19
- 0 9 19
-
- Column 4
-
- 5
- -13
- 11
-
-a(2,:)=a(2,:)/-9
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 0 1 19/9
- 0 9 19
-
- Column 4
-
- 5
- 13/9
- 11
-
-a(3,:)=a(3,:)-9*a(2,:)
-
-a =
-
- Columns 1 through 3
-
- 1 4 5
- 0 1 19/9
- 0 0 0
-
- Column 4
-
- 5
- 13/9
- -2
-
-ref2=a
-
-ref2 =
-
- Columns 1 through 3
-
- 1 4 5
- 0 1 19/9
- 0 0 0
-
- Column 4
-
- 5
- 13/9
- -2
-
-a=[2 3 -4 1 2; 3 -1 -1 2 4; 1 -7 5 -1 6]
-
-a =
-
- Columns 1 through 3
-
- 2 3 -4
- 3 -1 -1
- 1 -7 5
-
- Columns 4 through 5
-
- 1 2
- 2 4
- -1 6
-
-a([1 3],:)=a([3 1],:)
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 3 -1 -1
- 2 3 -4
-
- Columns 4 through 5
-
- -1 6
- 2 4
- 1 2
-
-a(2,:)=a(2,:)-3*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 20 -16
- 2 3 -4
-
- Columns 4 through 5
-
- -1 6
- 5 -14
- 1 2
-
-a(3,:)=a(3,:)-2*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 20 -16
- 0 17 -14
-
- Columns 4 through 5
-
- -1 6
- 5 -14
- 3 -10
-
-a(2,:)=a(2,:)/20
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 1 -4/5
- 0 17 -14
-
- Columns 4 through 5
-
- -1 6
- 1/4 -7/10
- 3 -10
-
-a(3,:)=a(3,:)-17*a(2,:)
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 1 -4/5
- 0 0 -2/5
-
- Columns 4 through 5
-
- -1 6
- 1/4 -7/10
- -5/4 19/10
-
-a(3,:)=a(3,:)*(-5/2)
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 1 -4/5
- 0 0 1
-
- Columns 4 through 5
-
- -1 6
- 1/4 -7/10
- 25/8 -19/4
-
-A=[2 3 -4 1 2; 3 -1 -1 2 4; 1 -7 5 -1 6]
-
-A =
-
- Columns 1 through 3
-
- 2 3 -4
- 3 -1 -1
- 1 -7 5
-
- Columns 4 through 5
-
- 1 2
- 2 4
- -1 6
-
-rref(A)
-
-ans =
-
- Columns 1 through 3
-
- 1 0 0
- 0 1 0
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 11/4 -9/2
- 25/8 -19/4
-
-a
-
-a =
-
- Columns 1 through 3
-
- 1 -7 5
- 0 1 -4/5
- 0 0 1
-
- Columns 4 through 5
-
- -1 6
- 1/4 -7/10
- 25/8 -19/4
-
-a(1,:)=a(1,:)+7*a(2,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 -3/5
- 0 1 -4/5
- 0 0 1
-
- Columns 4 through 5
-
- 3/4 11/10
- 1/4 -7/10
- 25/8 -19/4
-
-a(1,:)=a(1,:)+(3/5)*a(3,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 *
- 0 1 -4/5
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 1/4 -7/10
- 25/8 -19/4
-
-a(2,:)=a(2,:)+(4/5)*a(3,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 *
- 0 1 *
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 11/4 -9/2
- 25/8 -19/4
-
-rref(A)
-
-ans =
-
- Columns 1 through 3
-
- 1 0 0
- 0 1 0
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 11/4 -9/2
- 25/8 -19/4
-
-rref3=a
-
-rref3 =
-
- Columns 1 through 3
-
- 1 0 *
- 0 1 *
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 11/4 -9/2
- 25/8 -19/4
-
-rref3a=a
-
-rref3a =
-
- Columns 1 through 3
-
- 1 0 *
- 0 1 *
- 0 0 1
-
- Columns 4 through 5
-
- 21/8 -7/4
- 11/4 -9/2
- 25/8 -19/4
-
-delete rref3
-[Warning: File 'rref3' not found.]
-remove rref3
-{Undefined function 'remove' for input arguments of
-type 'char'.
-}
-a=[2 3 -4 4; 8 11 -7 8; 2 2 -4 -3]
-
-a =
-
- Columns 1 through 3
-
- 2 3 -4
- 8 11 -7
- 2 2 -4
-
- Column 4
-
- 4
- 8
- -3
-
-A=a
-
-A =
-
- Columns 1 through 3
-
- 2 3 -4
- 8 11 -7
- 2 2 -4
-
- Column 4
-
- 4
- 8
- -3
-
-rref(A)
-
-ans =
-
- Columns 1 through 3
-
- 1 0 0
- 0 1 0
- 0 0 1
-
- Column 4
-
- -157/18
- 7
- -1/9
-
-a
-
-a =
-
- Columns 1 through 3
-
- 2 3 -4
- 8 11 -7
- 2 2 -4
-
- Column 4
-
- 4
- 8
- -3
-
-a(1,:)=a(1,:)/2
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 8 11 -7
- 2 2 -4
-
- Column 4
-
- 2
- 8
- -3
-
-a(2,:)=a(2,:)-8*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 0 -1 9
- 2 2 -4
-
- Column 4
-
- 2
- -8
- -3
-
-a(3,:)=a(3,:)-2*a(1,:)
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 0 -1 9
- 0 -1 0
-
- Column 4
-
- 2
- -8
- -7
-
-a(2,:)=a(2,:)/-1
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 0 1 -9
- 0 -1 0
-
- Column 4
-
- 2
- 8
- -7
-
-a(3,:)=a(3,:)+1*a(2,:)
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 0 1 -9
- 0 0 -9
-
- Column 4
-
- 2
- 8
- 1
-
-a(3,:)=a(3,:)/-9
-
-a =
-
- Columns 1 through 3
-
- 1 3/2 -2
- 0 1 -9
- 0 0 1
-
- Column 4
-
- 2
- 8
- -1/9
-
-a(1,:)=a(1,:)-(3/2)*a(2,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 23/2
- 0 1 -9
- 0 0 1
-
- Column 4
-
- -10
- 8
- -1/9
-
-a(2,:)=a(2,:)+9*a(3,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 23/2
- 0 1 0
- 0 0 1
-
- Column 4
-
- -10
- 7
- -1/9
-
-a(1,:)=a(1,:)-(23/2)*a(3,:)
-
-a =
-
- Columns 1 through 3
-
- 1 0 0
- 0 1 0
- 0 0 1
-
- Column 4
-
- -157/18
- 7
- -1/9
-
-rref3b=a
-
-rref3b =
-
- Columns 1 through 3
-
- 1 0 0
- 0 1 0
- 0 0 1
-
- Column 4
-
- -157/18
- 7
- -1/9
-
-diary off
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-09 23:11:14 +0000