SQLite tan() Function

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In SQLite, the tan() function calculates the tangent of a value in radians.

Syntax #

tan(x)Copy

Arguments #

x

x is a number, an expression, or a table column that you want to calculate the tangent. x is in radians.

Return Type #

real

The function returns the tangent of x in radians. If x is NULL, the function returns NULL.

If x is a string, the tan() function will convert the value into a number before calculating the tangent. If the conversion fails, the tan() function returns NULL.

Examples #

The following example uses the tan() function to calculate the tangent of zero (0):

SELECT tan(0) result;Copy

Output:

result
------
0.0Copy

The following statement uses the tan() function to return the tangent of pi/4:

SELECT round(tan(pi()/4)) result;Copy

Output:

result
------
1.0Copy