MATLAB: Function ‘eq’

faq6.1

When I use 'eq' function or '==' I get strange results.
eq((0.6-0.2-0.2),0.2)
ans =
0
Please tell me why Matlab does not return true? What is not correct?

Best Answer

In brief, note that .6 -.2 -.2 not equal to .2:
sprintf('%.17f',0.6-0.2-0.2)
ans =
0.19999999999999996