Math

RADIANS

DuckDB

Mengkonversi sudut dari derajat ke radian. Input untuk fungsi trigonometri seperti SIN, COS.

Tipe hasil: DOUBLEDiperbarui: 6 Jan 2026

Syntax

SQL

RADIANS(degrees)

Parameter

degreesDOUBLEwajib

Sudut dalam derajat yang akan dikonversi

Contoh Penggunaan

Konversi Derajat ke Radian

SQL

1 SELECT
2   degree_val,
3   RADIANS(degree_val) as radian_val
4 FROM (
5   SELECT unnest([0, 30, 45, 60, 90, 180, 360]) as degree_val
6 );

Mengkonversi sudut umum ke radian.

Hasil

degree_val	radian_val
0	0
30	0.524
45	0.785
60	1.047
... 3 baris lainnya

Trigonometri dengan Derajat

SQL

1 SELECT
2   angle_degrees,
3   SIN(RADIANS(angle_degrees)) as sin_val,
4   COS(RADIANS(angle_degrees)) as cos_val
5 FROM (
6   SELECT unnest([0, 30, 45, 60, 90]) as angle_degrees
7 );

Menggunakan SIN dan COS dengan input derajat.

Hasil

angle_degrees	sin_val	cos_val
0	0	1
30	0.5	0.866
45	0.707	0.707
60	0.866	0.5
... 1 baris lainnya

Haversine Distance Preparation

SQL

1 SELECT
2   city,
3   latitude,
4   longitude,
5   RADIANS(latitude) as lat_rad,
6   RADIANS(longitude) as lon_rad
7 FROM cities;

Menyiapkan koordinat untuk perhitungan jarak Haversine.

Hasil

city	latitude	longitude	lat_rad	lon_rad
Jakarta	-6.2	106.8	-0.108	1.864
Tokyo	35.7	139.7	0.623	2.438

Fungsi Terkait

DEGREES

Kembali ke DuckDB Functions

1	SELECT
2	degree_val,
3	RADIANS(degree_val) as radian_val
4	FROM (
5	SELECT unnest([0, 30, 45, 60, 90, 180, 360]) as degree_val
6	);

1	SELECT
2	angle_degrees,
3	SIN(RADIANS(angle_degrees)) as sin_val,
4	COS(RADIANS(angle_degrees)) as cos_val
5	FROM (
6	SELECT unnest([0, 30, 45, 60, 90]) as angle_degrees
7	);

1	SELECT
2	city,
3	latitude,
4	longitude,
5	RADIANS(latitude) as lat_rad,
6	RADIANS(longitude) as lon_rad
7	FROM cities;