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| author | bors <bors@rust-lang.org> | 2025-10-04 13:37:12 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2025-10-04 13:37:12 +0000 |
| commit | 1bd98acf0e54f1ea678c4fabb8e1b10851eb8465 (patch) | |
| tree | e1e0adfca6dd8050387b45ffb09c0985cf2a32a8 /library/std/src/num/f128.rs | |
| parent | 99b9a8850349e56247acb6ce19910c7f96db8439 (diff) | |
| parent | 1ebbb3c2fd78de38d0730cf9d874295f0d5dc2f1 (diff) | |
| download | rust-auto.tar.gz rust-auto.zip | |
Auto merge of #147330 - matthiaskrgr:rollup-h4jyzmv, r=matthiaskrgr auto
Rollup of 11 pull requests Successful merges: - rust-lang/rust#142670 (Document fully-qualified syntax in `as`' keyword doc) - rust-lang/rust#145685 (add CloneFromCell and Cell::get_cloned) - rust-lang/rust#146330 (Bump unicode_data and printables to version 17.0.0) - rust-lang/rust#146451 (Fix atan2 inaccuracy in documentation) - rust-lang/rust#146479 (add mem::conjure_zst) - rust-lang/rust#147117 (interpret `#[used]` as `#[used(compiler)]` on illumos) - rust-lang/rust#147190 (std: `sys::net` cleanups) - rust-lang/rust#147251 (Do not assert that a change in global cache only happens when concurrent) - rust-lang/rust#147280 (Return to needs-llvm-components being info-only) - rust-lang/rust#147288 (compiletest: Make `DirectiveLine` responsible for name/value splitting) - rust-lang/rust#147315 (bless autodiff batching test) r? `@ghost` `@rustbot` modify labels: rollup
Diffstat (limited to 'library/std/src/num/f128.rs')
| -rw-r--r-- | library/std/src/num/f128.rs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/library/std/src/num/f128.rs b/library/std/src/num/f128.rs index 5d206c4b7da..40061d08928 100644 --- a/library/std/src/num/f128.rs +++ b/library/std/src/num/f128.rs @@ -557,10 +557,12 @@ impl f128 { /// Computes the four quadrant arctangent of `self` (`y`) and `other` (`x`) in radians. /// - /// * `x = 0`, `y = 0`: `0` - /// * `x >= 0`: `arctan(y/x)` -> `[-pi/2, pi/2]` - /// * `y >= 0`: `arctan(y/x) + pi` -> `(pi/2, pi]` - /// * `y < 0`: `arctan(y/x) - pi` -> `(-pi, -pi/2)` + /// | `x` | `y` | Piecewise Definition | Range | + /// |---------|---------|----------------------|---------------| + /// | `>= +0` | `>= +0` | `arctan(y/x)` | `[+0, +pi/2]` | + /// | `>= +0` | `<= -0` | `arctan(y/x)` | `[-pi/2, -0]` | + /// | `<= -0` | `>= +0` | `arctan(y/x) + pi` | `[+pi/2, +pi]`| + /// | `<= -0` | `<= -0` | `arctan(y/x) - pi` | `[-pi, -pi/2]`| /// /// # Unspecified precision /// |