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Math, Angle, and Test Operations 2-3
Math operations that are valid for lists return a list
calculated element by element. If you use two lists in the
same expression, they must be the same length.
You can use + (addition,
Ã
),
N
(subtraction,
¹
),
ä
(multiplication,
¯
), and
à
(division,
¥
) with real and
complex numbers, expressions, lists, and matrices. You
cannot use
à
with matrices.
valueA
+
valueB valueA
N
valueB
valueA
ä
valueB valueA
à
valueB
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.
sin(
value
) cos(
value
) tan(
value
)
You can use the inverse trig functions (arcsine,
y
[
SIN
L
1
];
arccosine,
y
[
COS
L
1
]; and arctangent,
y
[
TAN
L
1
]) with
real numbers, expressions, and lists. The current angle
mode setting affects interpretation.
sin
L
1
(
value
) cos
L
1
(
value
) tan
L
1
(
value
)
Note:
The trig functions do not operate on complex numbers.
You can use ^ (power,
›
),
2
(square,
¡
), and
‡
(
(square
root,
y
[
‡
]) with real and complex numbers, expressions,
lists, and matrices. You cannot use
‡
(
with matrices.
value
^
power value
2
‡
(
value
)
You can use
L
1
(inverse,
—
) with real and complex
numbers, expressions, lists, and matrices. The
multiplicative inverse is equivalent to the reciprocal, 1
à
x
.
value
L
1
Keyboard Math Operations
Using Lists with
Math Operations
+ (Addition),
N
(Subtraction),
ä
(Multiplication),
à
(Division)
Trigonometric
Functions
^ (Power),
2
(Square),
‡
( (Square Root)
L
1
(Inverse)