The Argument of a complex number is the angle in the complex plane between the positive real axis and a vector to the complex number. Positive angles are counter-clockwise from the positive real axis. ARG returns the principal value which has a range of -PI to PI radians or -180 to 180 degrees, depending on the current trigonometric mode. Note that the ARG of a real number can be either 0 or PI (180), depending on whether the number is positive or negative. COMPLEX numbers are stored in rectangular form, but may be used in polar form using ABS and ARG. For example:
PRINT "Magnitude = ";ABS(Z),"Angle = ";ARG(Z)
To enter a number in polar form, convert it from polar form to rectangular in this manner:
