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| author | DimitriiTrater <dima1603040@gmail.com> | 2025-09-11 19:17:05 +0200 |
|---|---|---|
| committer | DimitriiTrater <dima1603040@gmail.com> | 2025-09-25 13:35:42 +0200 |
| commit | d834935b57bcd4604727e8a1fa93e8785979eb5c (patch) | |
| tree | 00cd023232d7d7757ab2349f0bc8a3de9a4501fc | |
| parent | 76c5ed2847cdb26ef2822a3a165d710f6b772217 (diff) | |
| download | rust-d834935b57bcd4604727e8a1fa93e8785979eb5c.tar.gz rust-d834935b57bcd4604727e8a1fa93e8785979eb5c.zip | |
Fix atan2 inaccuracy in documentation
| -rw-r--r-- | library/std/src/num/f128.rs | 10 | ||||
| -rw-r--r-- | library/std/src/num/f16.rs | 10 | ||||
| -rw-r--r-- | library/std/src/num/f32.rs | 10 | ||||
| -rw-r--r-- | library/std/src/num/f64.rs | 10 |
4 files changed, 24 insertions, 16 deletions
diff --git a/library/std/src/num/f128.rs b/library/std/src/num/f128.rs index b83692390b6..5a85c1daaf0 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 /// diff --git a/library/std/src/num/f16.rs b/library/std/src/num/f16.rs index 5599528717c..cc10c41b9e7 100644 --- a/library/std/src/num/f16.rs +++ b/library/std/src/num/f16.rs @@ -522,10 +522,12 @@ impl f16 { /// 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 /// diff --git a/library/std/src/num/f32.rs b/library/std/src/num/f32.rs index 0247080a8d6..72e5f4d4c41 100644 --- a/library/std/src/num/f32.rs +++ b/library/std/src/num/f32.rs @@ -826,10 +826,12 @@ impl f32 { /// 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 /// diff --git a/library/std/src/num/f64.rs b/library/std/src/num/f64.rs index 1cfd3909d96..5f3e793c3a7 100644 --- a/library/std/src/num/f64.rs +++ b/library/std/src/num/f64.rs @@ -826,10 +826,12 @@ impl f64 { /// 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 /// |