% this replaces x with abs(x)
if (x < 0)
    x = -x;
end
x


function Myfib(n)
    A0 = 0;
    A1 = 1;
 
for i = 2:n
    An = A0 + A1;
    A0 = A1;
    A1 = An;
end
Mystring = ['The ', num2str(n),'th Fibonacci number is: ',num2str(An)];
disp(Mystring);



function Myfibold(n)
 
A(1) = 0;
A(2) = 1;
 
for i = 1:n-1
    A(i+2) = A(i+1) + A(i);
end

Mystring = ['The ', num2str(n),'th Fibonacci number is: ', num2str(A(i+2))];
disp(Mystring);



function Myfun(x,y)
 
x^y




% this script is an example of a while loop
n = 0;
tic
while (x ~= 2)
    x = x+1;
    n = n+1;
end
x
n
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