HP 33s - Manual (Page 32)

1–16 Getting Started
Keys: Display: Description:
123 _ Digit entry not terminated: the number
is not complete.
If you execute a function to calculate a result, the cursor disappears because the
number is complete — digit entry has been terminated.
#
)
 Digit entry is terminated.
Pressing ‘ terminates digit entry. To separate two numbers, key in the first
number, press ‘ to terminate digit, entry, and then key in the second
number
123 ‘
)
 A completed number.
4 ›

)
 Another completed number.
If digit entry is not terminated (if the cursor is present), b backspaces to erase
the last digit. If digit entry is terminated (no cursor), b acts like ‡ and clears
the entire number. Try it!
Range of Numbers and OVERFLOW
The smallest number available on the calculator is 1 × 10 –499
. The largest number
is 9.99999999999 × 10 499
(displayed as )
 
because of rounding).
„ If a calculation produces a result that exceeds the largest possible number,
9.99999999999
× 10 499
is returned, and the warning message
#  $ appears.
„ If a calculation produces a result smaller that the smallest possible number,
zero is returned. No warning message appears.
Doing Arithmetic
All operands (numbers) must be present before you press a function key. (When
you press a function key, the calculator immediately executes the function
shown on that key.)
All calculations can be simplified into one–number functions and/or two–number
functions.