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Real–Number Functions 4-3
In RPN mode, to calculate a root x of a number y (the x
th
root of y), key in y
x, then press . For y < 0, x must be an integer.
Trigonometry
Entering π
Press to place the first 12 digits of π into the X–register.
(The number displayed depends on the display format.) Because
is a
function that returns an approximation of π to the stack, it is not necessary to press
.
Note that the calculator cannot exactly represent π, since π is a transcendental
number.
To Calculate: Press: Result:
15
2
10
6
5
4
2
–1.4
(–1.4)
3
To Calculate: Press: Result:
196
3
125−
4
625
4.1
37893.
−