Format

SIGN (a1,a2)

Description

The SIGN function transfers the sign of a2 to the magnitude of a1.

Example

VARIABLE/23, FUNCTION=10*SIGN(DM(24,33),VZ(24,33))

When VZ(24,33)>0, the value of VARIABLE/23 is +10*DM(24,33).

When VZ(24,33)<0, the value of VARIABLE/23 is -10*DM(24,33).

Arguments

a1

Any valid function expression or constant.

a2

Any valid function expression or constant.

Definition

SIGN(a1,a2) =  ABS(a1) if a2 > 0

SIGN(a1,a2) = -ABS(a1) if a2 < 0

Comments

The SIGN function is discontinuous.  Use this function with care to avoid creating expressions that are discontinuous.