Texas Instruments TI-84 - Manual (Page 80)

Chapter 2: Math, Angle, and Test Operations 77
real( real( real( real(
real( (real part) returns the real part of a complex number or list of complex numbers.
real(a+bi) returns a.
real(re^(
q
i)) returns r
†
cos(
q ).
imag( imag( imag( imag(
imag( (imaginary part) returns the imaginary (nonreal) part of a complex number or list of
complex numbers.
imag(a+bi) returns b.
imag(re^(
q
i)) returns r
†
sin(
q
).
angle( angle( angle( angle(
angle( returns the polar angle of a complex number or list of complex numbers,
calculated as tan
L1
(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.