HP 33s Scientific manual Trigonometry, Entering π, To Calculate Press Result

￿In RPN mode, to calculate a number y raised to a power x, key in y ‘x, then press . (For y > 0, x can be any number; for y < 0, x must be an odd integer; for y = 0, x must be positive.)

￿

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To Calculate:		Press:	Result:
152	15 !		)
106	6	{	88)
54	5	‘4
			)
2–1.4	2	‘1.4 ^	) 
(–1.4)3	1.4 ^‘{$		.) 
196	196 #		)
3 − 125	125 ^{@		.)

In RPN mode, to calculate a root x of a number y (the xth root of y), key in y ‘x, then press . For y < 0, x must be an integer.

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To Calculate:	Press:	Result:
4 625	625 ‘4	)
−1.4 .37893	.37893‘1.4 ^	)

Trigonometry

Entering π

Press Nto place the first 12 digits of π into the X–register.

(The number displayed depends on the display format.) Because π is a function, it doesn't need to be separated from another number by ‘.

Note that the calculator cannot exactly represent π, since π is an irrational number.

Real–Number Functions 4–3