MATLAB Day 1 & 2

%-- 10/16/2019 2:29 PM --%
a = 5
a = 5;
isinteger(a);
b = 'hello';
a;
a
b
num = 7;
sum = 3 + 4;
num + sum
which imshow
clear
clear;
whos num;
b = 'hello';
whos b;
a = 7;
whos a;
x = 15.66
x = single(x);
x
clear
iskeyword
clc
clf
imshow('rice.png');
imshow('rice.png');
clf
clc
type imshow
clc
which foo
which imshow
ver
clc
array = [15,56,45,31,556,645];
array
save file1.mat array
load('file1.mat')
ls
load('file1.mat')
load('file1.mat', 'array')
clc
help imshow
clc
doc array
lookfor array
clc
imshow('peppers.png');
clc
RGB = imread('peppers.png');
RGB
BW = imread('rice.png');
BW
imshow('rice.png');
I = rgb2gray(RGB);
imshow(I);
clc
%-- 10/17/2019 4:06 PM --%
5+6
clc
num = [1,2,3;4,5,6;7,8,9]
clc
clc
num(8)
clc
num3 = [1:4; 5:8; 9:12; 13:16]
num3(8)
vector1 = [15,56,54,89,63]
A = diag(vector1)
b = eye(3)
b = eye(3,5)
c = true(3)
c =true(3,2)
c = false(3,2)
who c(1,2)
whos c(1,2)
whos c
d = ones(2,4)
d = zeros(2,4)
whos d
m = magic(3)
m = magic(5)
cell1 = {15,'A',46,'C',65;16,'C',98,96,'D'}
cell1(1,2)
cell1(1,4)
cell1(1,5)
cell2 = {[56 89 78 78];[13 69 78 95];['a' 'b' 'c' 'd']}
cell2(1)
cell2(1,1)
whos cell1
cell2{1,1}
cell2{1}
cell1{1}
whos cell1{1}
field1 = 'f1';  value1 = zeros(1,10);
field2 = 'f2';  value2 = {'a', 'b'};
field3 = 'f3';  value3 = {pi, pi.^2};
field4 = 'f4';  value4 = {'fourth'};
s = struct(field1,value1,field2,value2,field3,value3,field4,value4)
s
s(1)
s(1).f2
s(2).f1
s(2).f2
s(2).f3
s(1).f3
5 == 5
5 == 6
6 ~= 5
6 ~= 6
5 > 6
6 <6
6 <= 6
1 & 1
1 & 03
1 & 0
clc
0 | ~0
0 | ~1
0 && ~1
0 && ~0
1 && ~0
clc
ide = eye(3)
NOTide = ~ide
whos NOTide