Assignment #2
clear, clc
x = [2:0.2:14] % b. method 1 a = length(x) % find number of elements for method 2. x = linspace(2, 14, a) % b. method 2 x = linspace(-2, 5, 50) % c. method 1 a = abs(x(1)-x(2)) % find incriment for method 2. x = [-2:a:5] % c. method 2
x =
Columns 1 through 9
2.0000 2.2000 2.4000 2.6000 2.8000 3.0000 3.2000 3.4000 3.6000
Columns 10 through 18
3.8000 4.0000 4.2000 4.4000 4.6000 4.8000 5.0000 5.2000 5.4000
Columns 19 through 27
5.6000 5.8000 6.0000 6.2000 6.4000 6.6000 6.8000 7.0000 7.2000
Columns 28 through 36
7.4000 7.6000 7.8000 8.0000 8.2000 8.4000 8.6000 8.8000 9.0000
Columns 37 through 45
9.2000 9.4000 9.6000 9.8000 10.0000 10.2000 10.4000 10.6000 10.8000
Columns 46 through 54
11.0000 11.2000 11.4000 11.6000 11.8000 12.0000 12.2000 12.4000 12.6000
Columns 55 through 61
12.8000 13.0000 13.2000 13.4000 13.6000 13.8000 14.0000
a =
61
x =
Columns 1 through 9
2.0000 2.2000 2.4000 2.6000 2.8000 3.0000 3.2000 3.4000 3.6000
Columns 10 through 18
3.8000 4.0000 4.2000 4.4000 4.6000 4.8000 5.0000 5.2000 5.4000
Columns 19 through 27
5.6000 5.8000 6.0000 6.2000 6.4000 6.6000 6.8000 7.0000 7.2000
Columns 28 through 36
7.4000 7.6000 7.8000 8.0000 8.2000 8.4000 8.6000 8.8000 9.0000
Columns 37 through 45
9.2000 9.4000 9.6000 9.8000 10.0000 10.2000 10.4000 10.6000 10.8000
Columns 46 through 54
11.0000 11.2000 11.4000 11.6000 11.8000 12.0000 12.2000 12.4000 12.6000
Columns 55 through 61
12.8000 13.0000 13.2000 13.4000 13.6000 13.8000 14.0000
x =
Columns 1 through 9
-2.0000 -1.8571 -1.7143 -1.5714 -1.4286 -1.2857 -1.1429 -1.0000 -0.8571
Columns 10 through 18
-0.7143 -0.5714 -0.4286 -0.2857 -0.1429 0 0.1429 0.2857 0.4286
Columns 19 through 27
0.5714 0.7143 0.8571 1.0000 1.1429 1.2857 1.4286 1.5714 1.7143
Columns 28 through 36
1.8571 2.0000 2.1429 2.2857 2.4286 2.5714 2.7143 2.8571 3.0000
Columns 37 through 45
3.1429 3.2857 3.4286 3.5714 3.7143 3.8571 4.0000 4.1429 4.2857
Columns 46 through 50
4.4286 4.5714 4.7143 4.8571 5.0000
a =
0.1429
x =
Columns 1 through 9
-2.0000 -1.8571 -1.7143 -1.5714 -1.4286 -1.2857 -1.1429 -1.0000 -0.8571
Columns 10 through 18
-0.7143 -0.5714 -0.4286 -0.2857 -0.1429 -0.0000 0.1429 0.2857 0.4286
Columns 19 through 27
0.5714 0.7143 0.8571 1.0000 1.1429 1.2857 1.4286 1.5714 1.7143
Columns 28 through 36
1.8571 2.0000 2.1429 2.2857 2.4286 2.5714 2.7143 2.8571 3.0000
Columns 37 through 45
3.1429 3.2857 3.4286 3.5714 3.7143 3.8571 4.0000 4.1429 4.2857
Columns 46 through 50
4.4286 4.5714 4.7143 4.8571 5.0000
x = logspace(1, 3, 50)
x =
1.0e+003 *
Columns 1 through 9
0.0100 0.0110 0.0121 0.0133 0.0146 0.0160 0.0176 0.0193 0.0212
Columns 10 through 18
0.0233 0.0256 0.0281 0.0309 0.0339 0.0373 0.0409 0.0450 0.0494
Columns 19 through 27
0.0543 0.0596 0.0655 0.0720 0.0791 0.0869 0.0954 0.1048 0.1151
Columns 28 through 36
0.1265 0.1389 0.1526 0.1677 0.1842 0.2024 0.2223 0.2442 0.2683
Columns 37 through 45
0.2947 0.3237 0.3556 0.3907 0.4292 0.4715 0.5179 0.5690 0.6251
Columns 46 through 50
0.6866 0.7543 0.8286 0.9103 1.0000
x = linspace(0, 10, 6) A = [3*x;5*x-20]
x =
0 2 4 6 8 10
A =
0 6 12 18 24 30
-20 -10 0 10 20 30
A = [3, 7, -4, 12; -5, 9, 10, 2; 6, 13, 8, 11; 15, 5, 4, 1] v = A(:, 2) % a. w = A(2, :) % b.
A =
3 7 -4 12
-5 9 10 2
6 13 8 11
15 5 4 1
v =
7
9
13
5
w =
-5 9 10 2
C = A(2:4, :) % b. uses A from problem 5. D = A(1:2, 2:4) % c.
C =
-5 9 10 2
6 13 8 11
15 5 4 1
D =
7 -4 12
9 10 2
max(A(:, 1)) % Max value for column 1 of A max(A(:, 2)) % Max value for column 2 of A max(A(:, 3)) % Max value for column 3 of A max(A(:, 4)) % Max value for column 4 of A min(A(:, 1)) % Min value for column 1 of A min(A(:, 2)) % Min value for column 2 of A min(A(:, 3)) % Min value for column 3 of A min(A(:, 4)) % Min value for column 4 of A x = A' max(x(:, 1)) % Max value for row 1 of A max(x(:, 2)) % Max value for row 2 of A max(x(:, 3)) % Max value for row 3 of A max(x(:, 4)) % Max value for row 4 of A min(x(:, 1)) % Min value for row 1 of A min(x(:, 2)) % Min value for row 2 of A min(x(:, 3)) % Min value for row 3 of A min(x(:, 4)) % Min value for row 4 of A
ans =
15
ans =
13
ans =
10
ans =
12
ans =
-5
ans =
5
ans =
-4
ans =
1
x =
3 -5 6 15
7 9 13 5
-4 10 8 4
12 2 11 1
ans =
12
ans =
10
ans =
13
ans =
15
ans =
-4
ans =
-5
ans =
6
ans =
1