Lista 6 - matlab

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LISTA 6 - MATLAB 
Dê a resposta para cada um dos itens abaixo: 
1. >> 2 + 3/4*5 
2. >> x=-13; y = 5*x, z = x^2+y 
3. v = [ 1 3, sqrt(5)] 
4. >>> length(v) 
5. >>> v2 = [3+ 4 5] 
6. >> v3 = [3 +4 5] 
7. >> v + v3 
8. >v4 = 3*v 
10. >> v5 = 2*v -3*v3 
11. >> v + v2 
12. >> w = [1 2 3], z = [8 9] 
13. >> cd = [2*z,-w], sort(cd) 
14. >> 1:4 
15. >> 3:7 
16. >> 1:-1 
17. >> 0.32:0.1:0.6 
18. >> -1.4:-0.3:-2 
19. >> r5 = [1:2:6, -1:-2:-7] 
20. >> r5(3:6) 
21. >> r5(1:2:7) 
22. >> c = [ 1; 3; sqrt(4)] 
23. >> c2 = [3 
4 
5] 
24. >> c3 = 2*c - 3*c2 
25. >> w, w', c, c' 
26. >> t = w + 2*c' 
27. >> x = [1+3i, 2-2i] 
28. >> x.' 
29. >> y = sin(3*pi*x); 
30. >> plot(x,y) 
31. >> Inserir no gráfico o seguinte: 
a) título - Graph of y = sin(3pi x) 
b) eixo x- x axis 
c) eixo Y - y-axis 
32. Sumir com a grade do fundo do gráfico 
33. Apresentar a grade do fundo do gráfico 
34. Explique o faz o comando: 
a) >> plot(x,y,'w*') 
b) >> plot(x,y,'w-',x,cos(3*pi*x),'g--') 
c) axis([-0.5 1.5 -1.2 1.2]), 
35. >> u = [ 10, -11, 12], v = [20; -21; -22] 
36. >> prod = u*v 
37. >> w = [2, 1, 3], z = [7; 6; 5] 
38. >> u*w 
39. >> u*w' 
40. >> u*u' 
41. >> v'*z 
42. >> u.*w 
43. >> u.*v' 
44. >> v.*z, u'.*v 
45. >> a = 1:5, b = 6:10, a./b 
 
 
46. >> a./a 
47. >> c = -2:2, a./c 
48. >> u.^2 
49. >> u.*u 
50. >> u.^4 
51. >> v.^2 
52. >> u.*w.^(-2) 
53. >> A = [5 7 9 
1 -3 -7] 
54. >> B = [-1 2 5; 9 0 5] 
55. >> C = [0, 1; 3, -2; 4, 2] 
56. >> D = [1:5; 6:10; 11:2:20] 
57. >> size(A), size(x) 
58. >> [r c] = size(A'), S = size(A') 
59. >> P = ones(2,3) 
60. >> Z = zeros(2,3), zeros(size(P')) 
61. >> S = [2 -1 0; -1 2 -1; 0 -1 2], 
62. >> St = S' 
63. >> S-St 
64. >> I = eye(3), x = [8; -4; 1], I*x 
65. >> J = [1:4; 5:8; 9:12; 20 0 5 4] 
66. >> K = [ diag(1:4) J; J' zeros(4,4)] 
67. >> J(1,1) 
68. >> J(2,3) 
69. >> J(4,3) 
70. >> J(4,1) = J(1,1) + 6 
71. >> J(1,1) = J(1,1) - 3*J(1,2) 
72. >> J(:,3) 
73. >> J(:,2:3) 
74. >> J(4,:) 
75. >> J(2:3,2:3) 
76. >> t1 = 'A' 
77. >> t2 = 'BCDE' 
78. >> t3 = [t1,t2] 
79. >> x = pi 
80. >> x ~= 3, x ~= pi 
81. x = [-2.0000, 3.1416, 5.0000; -1.0000, 0, 
1.0000] 
82. >> x == 0 
83. >> x > 1, x >=-1 
84. >> y = x>=-1, x > y 
85. >> x > 3 & x < 4 
86. >> x > 3 | x == -3 | x <= -5 
87. >> x = pi*(-1:3), round(x) 
88. >> fix(x) 
89. >> floor(x) 
90. >> ceil(x) 
91. >> sign(x), 
92. >> A = [1:3; 4:6; 7:9] 
93. >> s = sum(A), ss = sum(sum(A)) 
94. >> x = [1.3 -2.4 0 2.3], max(x), max(abs(x)) 
95. >> min(min(x))