利用Matlab计算小数除法时，计算结果出现问题

计算2.47/0.01时，输出247.0000，此时对结果使用ceil函数，得到的结果是278。但是计算2.471/0.001和24.7/0.1时均直接得到整数结果。

Answer 1

[Abhijeet]

Hi,

You have encountered a round-off error that demonstrates a fundamental problem with the way computers deal with fractional numbers. Some numbers (in fact, "most" of them) cannot be represented exactly in binary form -- specifically, fractional numbers that are not powers of two. This will occur in any computer program using ANSI/IEEE standard math.

You can refer to this answer for the same.

Thanks