FIC MATLAB 2017-1/Aula-2

%-- 08-03-2017 19:06:12 --% 1/3 help format a = 17.27484029463547 a format long a pi pi+a format pi+a help format format short e pi format bank pi 1000 * pi format + pi -2 17.3 0 format rat pi 10/3 format 10/3 format rat 1/3 + 1/2 format compact a format rand(3,3) format compact rand(3,3) format loose rand(3,3) doc format A = rand(3,3) det(A) inv(A) clear clc clear A a clear clc help clc clc a = [10 2 -7] a b = [-1.5; 0; 7.2] C = [1 2; 20 17; 0 1] C = [1, 2; 20, 17; 0 1] a length(a) length(b) size(C) length(C) help length C = [1 2 3; 5 6 7; 8 9 0] C = [1 2 3; 5 6 7] length(C) help length numel(C) size(a) size(b) v = 10:2:20 v = 10:2:200 v = 10:2:20 10:20 v = 10:2:20 v = 10:2:19 v = 10:-1:0 v = 10:1:6 help linspace linspace(10, 20, 5) linspace(10, 20) linspace(10, 20, 6) v = 10:2:20 linspace(10, 20, 7) help logspace logspace(0, 3, 4) logspace(0, 3, 8) logspace(0, 3, 7) logspace(0, 3, 8) clc logspace(0, 3, 8) linspace(5, 28, 100) 28 - 5 100/23 23/100 23/101 5 : 23/101 : 23 5 : 23/99 : 23 5 : 24/100 : 23 5 : 22/100 : 23 5 : 22/101 : 23 5 : 22/99: 23 5 : 27/99: 28 == linspace(4 5 : 27/99: 28 == linspace(5, 28, 100) linspace(5, 28, 100) 5 : 27/99: 28 5 : 28/100: 28 5 : 23/100: 28 5 : 23/101: 28 5 : 23/99: 28 5 : 23/99: 28 == linspace(5, 28, 100) 5 : 22/99: 28 == linspace(5, 28, 100) 5 : 24/99: 28 == linspace(5, 28, 100) 5 : 23/99: 28 == linspace(5, 28, 100) a = linspace(5, 28, 100) b = 5 : 23/101 : 28 b = 5 : 23/99 : 28 a == b isequal(a, b) a == b a b a b a b a b a b a b clc clear linspace(1, 3, 10) x = linspace(1, 3, 10) clear clc ones(3,4) 5*ones(3,4) zeros(1, 7) zeros(7, 1) zeros(7) zeros(7,7) zeros(7) eye(3) eye(3, 4) doc eye eye(4, 3) A = [1 2 3 4; 2 3 4 5; 55 44 33 22] zeros(3, 4) zeros(size(A)) x = [1 2 3 4 5] x = [1 2 3 4; 12 32 343 54] x.' size(x) size(x.') x' x.' x = [1 2 3 4; 12 32 343, 12+1i*3] x = [1 2 3 4; 12 32 343, 12+1i*3].' x = [2 3 4;32 343, 12+1i*3] x = [2 3 4;32 34, 12+1i*3] c = 12 + 1i*3 x x.' x' A B = [4 6 8 3; 3 5 7 1; 33 75 23 9] A + B A - B C = [44 7 21; 4 2 9; 7 33 1] A + C A - C A.' - B.' A A + 5 A * 5 A * B size(A) size(B) A B A * (B.') A B.' A .* B A B a .* B A .* B A B A .* B A B A ./ B A + B A .+ B A + B x = [1 2 3 4] y = [10 10 0 10] x .* y x -x x/10 x^2 x.*x x.^10 A A = [1 2 4; 2 3 5; 55 44 3] clc A det(A) inv(A) x = [1 2 3] clc x x = [1 2 1] clc x norm(x) sqrt(5) sqrt(6) y = [1 2 77 333 21 0] max(y) min(y) norm(y) y = [1 2 77 333 21 0 -8] max(y) min(y) A max(A) help max doc max A max(max(A)) max(A) max(max(max(A))) y sum(y) prod(y) A sum(A) doc sum clc exp(2) y exp(y) x exp(x) clc sin(0) sin(2) sin(pi/2) sind(2) sind(90) y clc y plot(y) stem(y) bar(y) x = 0:pi/10000:pi; size(x) x = 0:pi/10000:pi - pi/10000; size(x) x = linspace(0,pi,10000); size(x) plot(x) x = logspace(0,pi,10000); size(x) plot(x) x = linspace(0,pi,10000); y = cos(x); size(x) size(y) plot(x) plot(y) x = logspace(0,pi,10000); y = cos(x); plot(y) stem(y) y = [1 2 77 333 21 0 -8] plot(bar(y)) bar(y) hold on plot(y) y = cos(x); clc x = linspace(0,pi,10000); y = cos(x); plot(y) hold off plot(y) plot(x,y) y = [1 2 77 333 21 0 -8] x = [1 3 6 12 20 25 30] plot(x,y) plot(y,x) plot(x,y) grid on xlabel('x') ylabel('y') xlabel('Roberto') ylabel('Matlab') title('Meu gráfico') axis([1 30 -8 333]) axis([1 30 -8 200]) axis([1 45 -8 200]) close all