SIGN

The SIGN(a1,a2) function transfers the sign of the value of the expression a2 to the magnitude of the expression a1.

SIGN(a1,a2) = ABS(a1) if a2 ≥ 0

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

Format

SIGN (a1,a2)

Arguments

a1 Any valid function expression.
a2 Any valid function expression.

Cautions

The SIGN function is discontinuous. Use this function with care when defining expressions for motion or forces.