[longemen3000]

In Julia, there is the `isapprox` function to inexactly compare 2 numbers. (you can use it in infix form: `x≈y`. By default, two numbers are approximately equal if their relative tolerance is less than `sprt(eps(typeof(x))` (around 1e-8 for 64bit Floating point numbers)

Using equality to compare 2 floating point numbers doesn't get you anywhere, specially if you are using mathematical functions (the implementation of `sin` or `exp` could vary with operating systems or software versions)

[okl]

Relative tolerance becomes problematic though if your numbers are very close to zero. (https://randomascii.wordpress.com/2012/02/25/comparing-float...)

[adgjlsfhk1]

Which is why it also lets you specify an absolute tolerance. That's not done by default because there isn't a good way to choose one (unlike with relative tolerance).

[longemen3000]

yes, it is a common problem, it is acknowledged in the function's documentation: https://docs.julialang.org/en/v1/base/math/#Base.isapprox