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The ATAN SQL Function in MySQL and MariaDB - Arc-tangent calculation

ATANSyntax:ATAN(Number [, Number2])
Return value:FLOAT
Synonyms:ATAN2
Function type:Numeric function
Function Description

The ATAN() function returns the arc-tangent (inverse tangent) of "Number". "Number" is the tangent of a radians.

If "Number2" is specified, the arctangent is calculated from both numbers.

It is similar to computing the arctangent of "Number" / "Number2" except that the signs of both arguments are used to determine the quadrant of the result.

As "Number2" 0 is allowed as a divider.

The DEGREES() function can be used to calculate the angle from a radians.

SQL Examples for the ATAN function

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select atan(1.7320508075688767);
select degrees(atan(1.7320508075688767));
select atan(16331239353195368);
select degrees(atan(16331239353195368));
select atan(5443746451065123);
select degrees(atan(5443746451065123));

select atan(1.7320508075688767,2);
select degrees(atan(1.7320508075688767,2));
select atan(1.7320508075688767/2);
select degrees(atan(1.7320508075688767/2));

select atan(1.7320508075688767,1);
select degrees(atan(1.7320508075688767,1));
select atan(1.7320508075688767,0.5);
select degrees(atan(1.7320508075688767,0.5));
select atan(1.7320508075688767,-1);
select degrees(atan(1.7320508075688767,-1));

atan(1.7320508075688767)
double(23)
1.0471975511965976
degrees(atan(1.7320508075688767))
double(23)
59.99999999999999
atan(16331239353195368)
double(23)
1.5707963267948966
degrees(atan(16331239353195368))
double(23)
90
atan(5443746451065123)
double(23)
1.5707963267948963
degrees(atan(5443746451065123))
double(23)
89.99999999999999
atan(1.7320508075688767,2)
double(23)
0.7137243789447655
degrees(atan(1.7320508075688767,2))
double(23)
40.8933946491309
atan(1.7320508075688767/2)
double(23)
0.7137243789447655
degrees(atan(1.7320508075688767/2))
double(23)
40.8933946491309
atan(1.7320508075688767,1)
double(23)
1.0471975511965976
degrees(atan(1.7320508075688767,1))
double(23)
59.99999999999999
atan(1.7320508075688767,0.5)
double(23)
1.289761425292083
degrees(atan(1.7320508075688767,0.5))
double(23)
73.89788624801399
atan(1.7320508075688767,-1)
double(23)
2.0943951023931957
degrees(atan(1.7320508075688767,-1))
double(23)
120.00000000000001
The examples were created with the MyWAY SQL manager: Download

How to use the ATAN() function in MySQL and MariaDB databases

The ATAN() function in MySQL and MariaDB is commonly used in trigonometric calculations and applications involving angles. An angle associated with a particular tangent value may need to be determined.
ANY_VALUEASCIIASINATANATAN2AVGBENCHMARK

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More information about the ATAN SQL function: mysql.com and mariadb.com and w3schools.com
Updated: 2023-09-24ImprintContactTerms & conditionsPrivacy & CookiesUpdatesSitemapFacebookLinkedinTwitterStatistics©2020-2024 Heino Cunze-Fischer