Javascript - Calculation Error [duplicate]

Question

In the Chrome Javascript Console I type the following:

3.1 * 3.68

And the result returned is:

11.408000000000001

Why is the result not:

11.408

Answer 1

Floating point errors are quite normal, this is due to the problems inherent in representing some floating point numbers in binary.

Read this: What Every Computer Scientist Should Know About Floating-Point Arithmetic.