Display Clearing; One-Number Functions; Two-Number Functions And The V Key - HP -10C Owner's Handbook Manual

14 Section 1: Getting Started
Keystrokes
"
v
50*
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
as 1234567.898×10

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
45
´o
Two-Number Functions and the v
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.
Display
6.6262 -34
6.6262 -34
3.3131 -32
25
; 0.00000025×10
Display
45.
1.6532
Joule-seconds.
−15
can be keyed in as 2.5 ×10
v Key v v
23
can be keyed in
−22
.