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docs/en/sql-reference/functions/geo/s2.md
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@ -6,6 +6,8 @@ toc_title: S2 Geometry
[S2](https://s2geometry.io/) is a geographical indexing system where all geographical data is represented on a three-dimensional sphere (similar to a globe).
In the S2 library points are represented as unit length vectors called S2 point indices (points on the surface of a three dimensional unit sphere) as opposed to traditional (latitude, longitude) pairs.
## geoToS2 {#geoToS2}
Returns [S2](#s2index) point index corresponding to the provided coordinates `(longitude, latitude)`.
@ -63,7 +65,6 @@ s2ToGeo(s2index)
Type: `lon` - [Float64](../../../sql-reference/data-types/float.md). `lat` — [Float64](../../../sql-reference/data-types/float.md).
**Example**
Query:
@ -100,7 +101,6 @@ s2GetNeighbors(s2index)
Type: Each S2 index is [UInt64](../../../sql-reference/data-types/int-uint.md).
**Example**
Query:
@ -217,7 +217,6 @@ s2CapUnion(center1, radius1, center2, radius2)
- `center` - S2 point index corresponding the center of the smallest cap containing the two input caps. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
- `radius` - Radius of the smallest cap containing the two input caps. Type: [Float64](../../../sql-reference/data-types/float.md).
**Example**
Query:
@ -240,7 +239,6 @@ In the S2 system, a rectangle is represented by a type of S2Region called a S2La
Increases the size of the bounding rectangle to include the given S2 point index.
**Syntax**
``` sql
@ -258,7 +256,6 @@ s2RectAdd(s2pointLow, s2pointHigh, s2Point)
- `s2PointLow` - Low S2 cell id corresponding to the grown rectangle. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
- `s2PointHigh` - Hight S2 cell id corresponding to the grown rectangle. Type: [UInt64](../../../sql-reference/data-types/float.md).
**Example**
Query:
@ -336,7 +333,6 @@ s2RectUnion(s2Rect1PointLow, s2Rect1PointHi, s2Rect2PointLow, s2Rect2PointHi)
- `s2UnionRect2PointLow` - Low S2 cell id corresponding to the union rectangle. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
- `s2UnionRect2PointHi` - High S2 cell id corresponding to the union rectangle. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
**Example**
Query:
@ -373,7 +369,6 @@ s2RectIntersection(s2Rect1PointLow, s2Rect1PointHi, s2Rect2PointLow, s2Rect2Poin
- `s2UnionRect2PointLow` - Low S2 cell id corresponding to the rectangle containing the intersection of the given rectangles. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
- `s2UnionRect2PointHi` - Hi S2 cell id corresponding to the rectangle containing the intersection of the given rectangles. Type: [UInt64](../../../sql-reference/data-types/int-uint.md).
**Example**
Query: