If statement doesn't return base case

Hey. I've tried doing some simple code to speed up my calculations. Here it is:

function result = pressure(inp)
if (inp < 25)
    result = 1;   
else
    result = 1.*abs((log(100./inp)/(log(4))));
end

end

It works if I execute single numbers, but when I use it when I'm passing a bunch of numbers it breaks. If I pass a 1:1:100 matrix it doesn't use the base case anymore for any number under 25. Any ideas?

Answer 1

[KSSV]

inp = 1:100 ;
result = zeros(size(inp)) ; 
result(inp<25) = 1 ; 
result(inp>=25) = abs((log(100./inp(inp(>=25)))/(log(4))));

You cannot use that function, if you give input as an vector. If you want for vector, either follow the above procedure or run a loop for each inp.

Answer 2

[madhan ravi]

result = (inp < 25) +   abs((log(100./inp)/log(4))) .* (inp>=25)