Returns the sign of a real number argument, the sign of the numerical part of a unit object argument, or the unit vector in the direction of a complex number argument.
Level 1
->
Level 1
z1
->
z2
x_unit
->
xsign
'symb'
->
'SIGN(symb)'
Adrian Drury
Last modified: Sun Jun 21 15:47:05 EDT 1998