Equal condition issue _ I will become crazy

Hi I have been struggling with Matlab and I think I am going to become crazy. It seems that 2 is no longer equal to 2... I am probably just blind and I don't see the problem so please help me!

I run a code and after some iterations the condition at line 30 stops working when the terms are equal. HELP! Here is the code:

clear all; close all;

ndef=10; nsinus=10; Amax=2.0; Astep=Amax/ndef;

x0=0; y0=0;

A0=y0:(Amax-y0)/nsinus:Amax;

Ak=0; iAk=1;

%the goal of the following is to find in what cell between y0 and Amax are located

%the different elements of A0

for j=1:nsinus+1

    if A0(1,j)~=0

        while 1

            %I asked for these variables so you can see the problem
            A0(1,j)
            Ak
            %after some time this stops working properly
            %as you can see it looks like Matlab stops recognizing that 
            %the variables are equal
            % WTF?
            if Ak==A0(1,j)
                j
                disp('working')
            end
            if Ak>=A0(1,j)
                i0=iAk;
                break
            end

            iAk=iAk+1;
            Ak=Ak+Astep;
        end
    end
end

%this should stop when Ak=Amax=2, unstead it stops when Ak=2.2 because it doesn't realize that at %some point Ak=Amax=2. PLEASE HELP

Answer 1

[Sean de Wolski]

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