SQL/MX 2.x Reference Manual (G06.24+, H06.03+)

SQL/MX Functions and Expressions

HP NonStop SQL/MX Reference Manual—523725-004

9-14

ATAN Function

The ATAN function returns the arctangent of a numeric value expression as an angle

expressed in radians.

ATAN is an SQL/MX extension.

numeric-expression

is an SQL numeric value expression that specifies the value for the argument of

the ATAN function. See Numeric Value Expressions on page 6-50.

Examples of ATAN

•

This function returns the value 8.72766423249958400E-001 or approximately

0.8727 in radians (which is 50 degrees):

ATAN (1.192)

•

This function returns the value 0.8727. The function ATAN is the inverse of the

function TAN.

ATAN (TAN (0.8727))

ATAN (numeric-expression)