Error using msgbox

I have a code

if Sparse_Conc_Index>=1
---------
---------
---------
Class_Image = (Image_Path);
figure,imshow(Class_Image)
else 
    msgbox('Invalid Image ','ALERT')
end

my Sparse_Conc_Index value is 1.000,but that if loo pis not executing,only that msgbox is displaying,please help where i had made mistake

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F