Занятие 2

%% 4.
n=input('Enter n: ');
res = prod(n:-2:1);
if res>1e200
    disp ('Perepolnenye')
end
disp ('Double factorial of n = ')
disp (res)
%%
%% 5.
rnum = randi(10);
n = input('Enter number to guess: ');
if (n == rnum)
    disp('You have guessed the number! ')
elseif(n ~= rnum)
    disp('You have not guessed the number! ;(')
end
disp('Right answer is ')
disp(rnum)
%%
%% 6.
n = input('Enter number to guess (1 to 10): ');
for rnum = 1:10
    if (rnum == n)
        disp('Number you have entered is: ')
        disp(rnum)
        break;
    end
end
%%
%% 7.
m=input('Row: ')
n=input('Column:')
if (m~=n)
    disp ('Matritsa ne kvadratnaya')
elseif (m == n)
for i=1:m
for j=1:n
a(i,j)=input('elements-')
end
end
disp('Rank of matrix is: ')
rank(a)
end
%%