14 Section 1: Getting Started
Keystrokes Display
”
6.6262 -34
v
6.6262 -34
50*
3.3131 -32
Joule-seconds.
Note: Decimal digits from the mantissa which spill into the
exponent field will disappear from the display when you press
“, but will be retained internally.
“ will not operate with a number having more than seven digits to the left
of the decimal point or radix, or with a mantissa whose absolute value is smaller
than 0.000001. To key in such a number, use a form having a higher or lower
exponent value, as appropriate. For example, 123456789.8×10
23
can be keyed in
as 1234567.898×10
25
; 0.00000025×10
−15
can be keyed in as 2.5 ×10
−22
.
Display Clearing
• In Run mode, pressing ` (clear X) clears all digits in the display (X-
register) to zero.
• In Program mode, ` is programmable; it does not delete the
currently displayed instruction. It is stored in the calculator as a
programmed instruction.
One-Number Functions
A one-number function is any numeric function that performs an operation
using only one number. To use any one-number function:
1. Key the number into the display (if it is not already there).
2. Press the function key(s).
Keystrokes Display
45
45.
´o
1.6532
Two-Number Functions and the v
vv
v Key
A two-number function must have two numbers present in the calculator before
executing the function. +, -, * and ÷ are examples of two-number
functions.
As in basic arithmetic, the two numbers should be keyed into the calculator in
the order they would appear if the calculation were written down on paper from
left to right.
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