Texas Instruments TI-86 Manual Book page 281

angle
CPLX menu
MATRX CPLX menu
VECTR CPLX menu
Ans
- ¡
arc(
CALC menu
Asm(
CATALOG
angle ( complexNumber )
Returns the polar angle of complexNumber, adjusted by
+p in the 2nd quadrant or Lp in the 3rd quadrant. The
polar angle of a real number is always 0.
angle ( real , imaginary
±
angle ( magnitude angle
angle complexList
angle complexMatrix
angle complexVector
Returns a list, matrix, or vector in which each element is
the polar angle of the corresponding element in the
argument.
If complexVector has only two real elements, the
returned value is a real number, not a vector.
Ans
Returns the last answer.
arc ( expression , variable , start
Returns the length along expression with respect to
variable, from variable = start to variable = end.
Asm( assemblyProgramName
Executes an assembly language program. For more
information, refer to Chapter 16.
Chapter 20: A to Z Function and Instruction Reference
L1
) returns tan ( imaginary/real
returns angle, Lp < angle  p.
)
, end )
)
In angle mode and
Radian
number mode:
angle (3,4) b
angle (3±2) b
(6±p/3)¶A b
) .
angle A b
angle {(3,4),(3±2)} b
1.7¹4.2 b
147/Ans b
,x,0,1) b
2
arc(x
arc(cos x,x,0,p) b
269
complex
PolarC
.927295218002
2
(6±1.0471975512)
1.0471975512
{.927295218002 2}
7.14
20.5882352941
1.47894285752
3.82019778904