The [function](https://en.wikipedia.org/wiki/Atan2)is defined as the angle in the Euclidean plane, given in radians, between the positive x axis and the ray(`r`) to the point `(x, y) ≠ (0, 0)`.
The [function](https://en.wikipedia.org/wiki/Atan2)calculates the angle in the Euclidean plane, given in radians, between the positive x axis and the ray to the point `(x, y) ≠ (0, 0)`.
**Syntax**
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@@ -311,12 +311,12 @@ atan2(y, x)
**Parameters**
-`y` — y axis coordinate of the point through which the ray passes. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`x` — x axis coordinate of the point through which the ray passes. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`y` — y-coordinate of the point through which the ray passes. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`x` — x-coordinate of the point through which the ray passes. [Float64](../../sql-reference/data-types/float.md#float32-float64).
**Returned value**
- The angle `θ` such that `−π < θ ≤ π` and, for some `r > 0`, in radians.
- The angle `θ` such that `−π < θ ≤ π`, in radians.
The [function](https://en.wikipedia.org/wiki/Hypot) is defined to calculate the length of the hypotenuse of a right-angle triangle. It was designed to avoid errors arising due to limited-precision calculations performed on computers. The function avoids problems that occur when squaring very large or very small numbers.
Calculates the length of the hypotenuse of a right-angle triangle. The [function](https://en.wikipedia.org/wiki/Hypot) avoids problems that occur when squaring very large or very small numbers.
**Syntax**
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@@ -375,7 +375,7 @@ Result:
## log1p(x) {#log1px}
The [function](https://en.wikipedia.org/wiki/Natural_logarithm#lnp1) calculates `log(1 + x)`, compensating for the roundoff in `1+x`. `log1p(x)` is more accurate than `log(1+x)` for small values of `x`. For small `x`, `log1p(x)` is approximately `x`, whereas `log(1+x)` can be zero.
Calculates `log(1+x)`. The [function](https://en.wikipedia.org/wiki/Natural_logarithm#lnp1)`log1p(x)` is more accurate than `log(1+x)` for small values of x.
**Syntax**
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@@ -385,11 +385,11 @@ log1p(x)
**Parameters**
-`x` — Values are from the interval: `-1 < x < +∞`. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`x` — Values from the interval: `-1 < x < +∞`. [Float64](../../sql-reference/data-types/float.md#float32-float64).
**Returned value**
- Values are from the interval: `-∞ < log1p(x) < +∞`.
[Функция](https://msoffice-prowork.com/ref/excel/excelfunc/math/atan2/) вычисляет угол в радианах между положительной осью x и линией, проведенной из начала координат в точку `(x, y) ≠ (0, 0)`.
**Синтаксис**
``` sql
atan2(y,x)
```
**Параметры**
-`y` — координата y точки, в которую проведена линия. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`x` — координата х точки, в которую проведена линия. [Float64](../../sql-reference/data-types/float.md#float32-float64).
Вычисляет длину гипотенузы прямоугольного треугольника. При использовании этой [функции](https://php.ru/manual/function.hypot.html) не возникает проблем при возведении в квадрат очень больших или очень малых чисел.
**Синтаксис**
``` sql
hypot(x,y)
```
**Параметры**
-`x` — первый катет прямоугольного треугольника. [Float64](../../sql-reference/data-types/float.md#float32-float64).
-`y` — второй катет прямоугольного треугольника. [Float64](../../sql-reference/data-types/float.md#float32-float64).
Вычисляет `log(1+x)`. [Функция](https://help.scilab.org/docs/6.0.1/ru_RU/log1p.html)`log1p(x)` является более точной, чем функция `log(1+x)` для малых значений x.
**Синтаксис**
``` sql
log1p(x)
```
**Параметры**
-`x` — значения из интервала: `-1 < x < +∞`. [Float64](../../sql-reference/data-types/float.md#float32-float64).