Math

ATAN2

MySQL

Menghitung arc tangent dari y/x dengan mempertimbangkan kuadran. Hasilnya dalam radian, range -π hingga π.

Tipe hasil: DOUBLEDiperbarui: 7 Jan 2026

Syntax

SQL

ATAN2(y, x)

Parameter

yDOUBLEwajib

Koordinat Y

xDOUBLEwajib

Koordinat X

Contoh Penggunaan

Basic ATAN2

SQL

1 SELECT DEGREES(ATAN2(1, 1)) AS angle;

Sudut ke titik (1,1) = 45 derajat.

Hasil

angle: 45

Full Circle Angle

SQL

1 SELECT DEGREES(ATAN2(-1, -1)) AS angle;

Sudut ke titik (-1,-1) = -135 derajat.

Hasil

angle: -135

Calculate Bearing

SQL

1 SELECT DEGREES(ATAN2(
2   SIN(RADIANS(lon2-lon1)) * COS(RADIANS(lat2)),
3   COS(RADIANS(lat1)) * SIN(RADIANS(lat2)) -
4   SIN(RADIANS(lat1)) * COS(RADIANS(lat2)) * COS(RADIANS(lon2-lon1))
5 )) AS bearing;

Menghitung bearing antara dua koordinat.

Hasil

(bearing in degrees)

Fungsi Equivalen di Database Lain

ATAN2

Snowflake

ATAN2

BigQuery

Fungsi Terkait

SINCOSTANASINACOSATANDEGREESRADIANSCOT

Kembali ke MySQL Functions

1	SELECT DEGREES(ATAN2(
2	SIN(RADIANS(lon2-lon1)) * COS(RADIANS(lat2)),
3	COS(RADIANS(lat1)) * SIN(RADIANS(lat2)) -
4	SIN(RADIANS(lat1)) * COS(RADIANS(lat2)) * COS(RADIANS(lon2-lon1))
5	)) AS bearing;