sfsdf

k = 1/6;
x = 0:k:1
y = x.*sin(x) + (x.^3.*exp(x)./(x+1)
a = 0:100
a(end:-1:1)
m = [0:20]';
[m m.^2 2.^m]
round((rand(1,10).*9))
A=[1 3 2 5; 11 13 12 15; 8 14 6 9; 15 14 13 12]
sum(A)
sum(A')
sum(diag(fliplr(A)))
prod(A(2,1:3))
sum(A(1:4, end))
A = A(:,[1 3 2 4])
A(:,1)=[]
A= ones(3,4).*2

clear
A(2:3,1:5)=2
A=zeros(5)
A(1 2], 2:2:end) = A([2 1], 2:2:end)
A = ones(1,4)
A= linspace(2, 2, 10)