matlabSkryptyWprowadzenie

% zad 1.
a = input('Podaj a: ');
b = input('Podaj b: ');

if(a ~= b);
    w = 1 + ((a + b)/(a - b))^2

elseif(a == b);
    w = 1 + (a + b)/(a * b)
end;

% zad 2.
x = input('Podaj x: ');
y = input('Podaj y: ');

if((x > 0) && (y > 0))
    w =(x + y)/(log(x) + log(y))

else
    w = 1/(x + y)
end;

% zad 3.
A = round(10 * rand(8,5))
suma=0;

najw = max(A)
najm = min(A)
sred = mean(A)

ile=0;
for y=1:8
    if(A(y,3) > 5)
        ile=ile+1;
    end
end
ile=ile/8

% zad 4.
function s = silnia(n)
    s=1;
    for x=1:n
        s=s*x;
    end
end

% zad 5.
function m = mat05(n)
    for x=1:n
        m(x,x)=x;
    end
end

% zad 6.
function m = mat06(n)
    for y=1:n
        for x=1:n
            m(y,x) = y * x;
        end
    end
end

% zad 7.
function f = mat07(n)
    a = 1;
    b = 1;
    f = 1;
    for x=3:n
        f = a + b;
        a = b;
        b = f;
    end
end

% zad 8.
function m = mat08(n)
    for x=1:n
        m(x,x)=1
        if(x<n)
            m(x+1,x)=1
        end
    end
end

% zad 9.
function m = mat09(n, a, b)
    for x=1:2*n
        m(x, x) = a;
        m(2*n-x+1, x) = b;
    end
end

% zad 10.
function m = mat10(n)
    for y=1:n
        for x=1:n
            m(y, x) = y^(x-1);
        end
    end
end

% zad 11.
function m = mat11(n)
    m = ones(n);
    for x=1:n
        m(x, x) = silnia(n-x+1);
        if(x>1)
            for x1=1:x-1
                m(x, x1) = -1;
            end
        end
    end
end

% zad 12.
function b = mat12(n)
    c=0;
    b=1;
    for x=1:n
        if(mod(n, x) == 0)
            c=c+1;
        end
    end
    if(c>2)
        b=0;
    end
end

% zad 13.
function m = mat13(n, a, b)
    n=n*2;
    m=zeros(n);
    for x=1:n
        y=n-x+1;
        m(x, x)=a;
        m(y, x)=b;
        z=n-x*2;
        mp = ones(1, z);
        m(x, x+1:end-x) = mp;
        mp = mp * (-1);
        m(n-x+1, x+1:end-x) = mp;
    end
end