• *fraction Function
• *FROM_HEX Function
• *FROM_HEXC Function
• *FROM_HEXN Function
• *FROM_OCTAL Function
• *from_octalc
• *from_octaln Function
• *increment_normalize Function
• *increment_presented Function
• *rational Function
• *to_longint Function
• *to_shortint Function
• *to_ulongint Function
• *to_ushortint Function
• a5_enumapplicationdata Function
• a5_number_format Function
• ABS Function
• ACOS Function
• ASIN Function
• ATAN Function
• ATAN2 Function
• B_TO_KB Function
• BYTES_TO_MEGA Function
• CEILING Function
• CMTOINCHES Function
• COS Function
• DTOR Function
• enum_drop Function
• enumeration_load Function
• enumeration_play Function
• enumeration_save Function
• EXP Function
• FLOOR Function
• INCHES_TO_TWIPS Function
• INCHESTOCM Function
• LOG Function
• log10 Function
• MATH_PI
• MAX Function
• MIN Function
• MOD Function
• PIXELS_TO_TWIPS Function
• RAND Function
• ROUND Function
• ROUND_DOWN Function
• ROUND_UP Function
• RTOD Function
• SIGN Function
• SIN Function
• SQRT Function
• TAN Function
• TWIPS_TO_INCHES Function
• TWIPS_TO_PIXELS Function

ATAN2 Function

Syntax

Arguments

x

A number between - and + .

y

A number between - and + .

Description

Returns an arc tangent angle (in radians) for all four quadrants

Discussion

ATAN2() returns the arc tangent (in radians) for all four quadrants. With this function, you specify the X and Y coordinates, as opposed to specifying the tangent value, as is the case with the ATAN function.

Example

atan2(0,1) -> 0
rtod( atan2(99,99) ) -> 45

See Also

• Mathematical Functions