Texas Instruments -84 Plus, Manual Book

Page: 56 / 696

Chapter 2: Math, Angle, and Test Operations 53
Addition, Subtraction, Addition, Subtraction, Addition, Subtraction, Addition, Subtraction, Multiplication, Multiplication, Multiplication, Multiplication, Division Division Division Division
You can use + (addition,
Ã
),
N
(subtraction,
¹
),
…
(multiplication,
¯
), and
à
(division,
¥
)
with real and complex numbers, expressions, lists, and matrices. You cannot use
à
with
matrices.
Trigonometric Functions Trigonometric Functions Trigonometric Functions Trigonometric Functions
You can use the trigonometric (trig) functions (sine,
˜
; cosine,
™
; and tangent,
š
)
with real numbers, expressions, and lists. The current angle mode setting affects
interpretation. For example,
sin(30)
in Radian mode returns
L
.9880316241; in Degree
mode it returns .5.
You can use the inverse trig functions (arcsine,
y ?
; arccosine,
y @
; and
arctangent,
y A
) with real numbers, expressions, and lists. The current angle mode
setting affects interpretation.
Note:
The trig functions do not operate on complex numbers.
valueA
+
valueB
valueA
…
valueB
valueA
N
valueB
valueA
à
valueB
sin( value ) cos( value ) tan( value )
sin
L 1
(
value
) cos
L 1
(
value
) tan
L 1
(
value
)