Increase the sample size.rs

[Expertium]

Since the new method is roughly 2 times faster, how about sacrificing that speed in favor of accuracy? Of course, ideally we want both, but if I had to choose, I would say accuracy is more important in this case.
After this change, the speed should be more or less the same as with the old method.

[Expertium]

@L-M-Sherlock I think there is an error in this line:
let (mut a, mut b) = (xa.min(xc), xa.max(xc));
Original Python code:

    if xa < xc:
        a = xa
        b = xc
    else:
        a = xc
        b = xa

EDIT: or maybe I just don't understand Rust's syntax, but that line makes no sense to me

[izik1]

that looks correct and equivalent to:

let (mut a, mut b) = if xa < xc { (xa, xc) } else { (xc, xa) };

[L-M-Sherlock]

let (mut a, mut b) = (xa.min(xc), xa.max(xc));

This code is correct. a is the minimum between xa and xc, and b is the maximum between xa and xc.

[Expertium]

By the way, how can I tell whether this is implemented in the new beta?

[dae]

Check which fsrs-rs commit Anki currently points to: https://github.com/ankitects/anki/blob/edd38ca06730d7fc16804f52ce10f6bc54c3d145/Cargo.toml#L39