SQL Server/T-SQL Tutorial/Math Functions/ASIN

ASIN Returns as a float data type, the angle in radians that corresponds to the entered sine, which must have values between -1 and 1.

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This function is the inverse of SIN. 6> 7> SELECT ASIN(0.35) 8> GO

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    0.35757110364551026

(1 rows affected)</source>