2+2
ans =
4
a=2;
b=3;
a=2;
a+b
ans =
5
a*a+b
ans =
7
a=1:5
a =
Columns 1 through 4
1 2 3 4
Column 5
5
b=a+7
b =
8 9 10 11 12
a
a =
1 2 3 4 5
b
b =
8 9 10 11 12
a+b
ans =
9 11 13 15 17
a.*b
ans =
8 18 30 44 60
dot(a,b)
ans =
160
sum(a.*b)
ans =
160
rand
ans =
0.8147
rand(10,1)
ans =
0.9058
0.1270
0.9134
0.6324
0.0975
0.2785
0.5469
0.9575
0.9649
0.1576
rand(3,5)
ans =
0.9706 0.8003 0.9157 0.6557 0.9340
0.9572 0.1419 0.7922 0.0357 0.6787
0.4854 0.4218 0.9595 0.8491 0.7577
imagesc(ans);
colormap(gray);
im=rand(100,100);
imagesc(im);
im(1,1)=0;
imagesc(im);
im(1,1:20)=0;
imagesc(im);
im(10:2:20,:)=0;
imagesc(im);
im(10:2:20,:)=0;
imcolor=rand(10,10,3);
imagesc(imcolor);
im=imread('mms.jpg');
{Error using imread (line 368)
File "mms.jpg" does not exist.
}
imagesc(im);
impixelinfo;
im(:,:,1)=0;
imagesc(im);
imb=im(:,:,3);
{Index exceeds matrix dimensions.
}
im=imread('../Images/mms.jpg');
imb=im(:,:,3);
imagesc(imb);
sim=circshift(imb,[0 50]);
imagesc(sim);
for i=1:10000
sim=circshift(imb,[0 i]);
imagesc(sim);
drawnow;
end
{Operation terminated by user during imagesc (line 19)
}
for i=1:10000
imb=circshift(imb,[0 i]);
imagesc(imb);
drawnow;
end
{Operation terminated by user during imagesc (line 19)
}
diary off;