HP Prime - Page 313

Functions and commands 309
Sf
(ACOS)Arc cosine: cos
–1
x. Output range is from 0° to 180° or 0 to
. Inputs and outputs depend on the current angle format.
Also accepts complex numbers. Output will be complex for
values outside the normal cosine domain of .
ACOS(value)
Example:
ACOS(1) returns 0 (degrees mode)
Sg
(ATAN) Arc tangent: tan
–1
x. Output range is from –90° to 90° or –/
2 to /2. Inputs and outputs depend on the current angle
format. Also accepts complex numbers.
ATAN(value)
Example:
ATAN(1) returns 45 (degrees mode)
j
Square. Also accepts complex numbers.
value
2
Example:
18
2
returns 324
Sj
Square root. Also accepts complex numbers.
)
√value
Example:
√320 returns 17.88854382
k
x raised to the power of y. Also accepts complex numbers.
value
power
Example:
2
8
returns 256
Sk
The nth root of x.
root√value
Example:
3√8 returns 2
1– x 1