
ACOS(1) returns 0 (degrees mode)
(ATAN)
Arc tangent: tan
-1
(x). Output range is from –90° to 90° or –π/2 to π/2. Inputs and outputs depend on the
current angle format. Also accepts complex numbers.
ATAN(value)
Example:
ATAN(1) returns 45 (degrees mode)
Square. Also accepts complex numbers.
value
2
Example:
18
2
returns 324
Square root. Also accepts complex numbers.
√value
Example:
√320 returns 17.88854382
x raised to the power of y. Also accepts complex numbers.
value
power
Example:
2
8
returns 256
The nth root of x.
root√value
Example:
3√8 returns 2
Reciprocal.
Keyboard functions 349
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