This may be too trivial to ask. But when I searched, I didn't find anyone asking this question previously on this site.
When I consider 3.0 and 3.00, from a mathematical perspective, absolutely I can see both of them being equal. But some long time ago, I heard that those two are actually not equal in a scientific perspective, because they differ in number of significant digits after decimal point. Now, I wanted to know is this claim correct? Or just a hoax?
