Arc Tangent (ATAN)

Built-in number for ATAN is 403.
ATAN (
      source   : binary floating-point(8) value
) :   binary floating-point(8) value which is the arc tangent of the source value

Description:   The arc tangent of the numeric value of the source operand is computed and the result (in radians) is returned.

The result is in the range:

-pi/2 <= ATAN(source) <= +pi/2

See floating point results from special values for additional information.

Authorization Required

• None

Lock Enforcement

• None

Exceptions

06 Addressing

• 0601 Space Addressing Violation

0C Computation

• 0C06 Floating-Point Overflow
• 0C07 Floating-Point Underflow
• 0C09 Floating-Point Invalid Operand
• 0C0D Floating-Point Inexact Result
• 0C0E Floating-Point Zero Divide