Conditionals

If we want to assign c to b when the condition f(a) * f(c) < 0 is true:
if f(a) * f(c) < 0
       b = c;
end

If we want to assign c to b when the condition f(a) * f(c) < 0 is true, and assign c to a when the condition is false:

if f(a) * f(c) < 0
       b = c;
else 
       a = c;
end

To test the condition ``n equals to 1'', we need to use two equal signs, like n == 1, not n = 1. Note that a single = is the assignment operator. The statement n = 1 would assign 1 to n instead of testing the condition. The following assigns c to b when n equals 1, and assigns c to a when n equals to 2:

if n == 1 
       b = c;
elseif n == 2
       a = c;
end



oz 2009-12-22