TI-83 Plus Math, Angle, and Test Operations 90
angle(
angle( returns the polar angle of a complex number or list of complex
numbers, calculated as tanL1 (b/a), where b is the imaginary part and a is
the real part. The calculation is adjusted by +p in the second quadrant or
Np in the third quadrant.
angle(a+bi) returns tan
L1
(b/a).
angle(re^(
q
i)) returns
q
, where Lp<
q
<p.
abs(
abs( (absolute value) returns the magnitude (modulus), (real2+imag2) , of
a complex number or list of complex numbers.
abs(a+bi) returns (a2+b2) .
abs(re^(
q
i)) returns r (magnitude).