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)
b = 5 : 23/99 : 28
a == b
isequal(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