HP (Hewlett-Packard) 12C 사용자 설명서
31
File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 31 of 275
Printed Date: 2005/8/1
Printed Date: 2005/8/1
Dimension: 14.8 cm x 21 cm
Section 2
Percentage and Calendar
Functions
Percentage Functions
The hp 12c platinum includes three keys for solving percentage problems: b, à,
and Z. You don’t need to convert percentages to their decimal equivalents; this
is done automatically when you press any of these keys. Thus, 4% need not be
changed to 0.04; you key it in the way you see and say it: 4b.
and Z. You don’t need to convert percentages to their decimal equivalents; this
is done automatically when you press any of these keys. Thus, 4% need not be
changed to 0.04; you key it in the way you see and say it: 4b.
Percentages in RPN Mode
In RPN mode, to find the amount corresponding to a percentage of a number:
1. Key in the base number.
2. Press \.
3. Key in the percentage.
4. Press b.
2. Press \.
3. Key in the percentage.
4. Press b.
For example, to find 14% of $300:
Keystrokes
(RPN mode)
(RPN mode)
Display
300
300.
Keys in the base number.
\
300.00
Pressing \ separates the next
number entered from the first number,
just as when an ordinary arithmetic
calculation is performed.
number entered from the first number,
just as when an ordinary arithmetic
calculation is performed.
14
14.
Keys in the percentage.
b
42.00
Calculates the amount.
If the base number is already in the display as a result of a previous calculation,
you should not press \ before keying in the percentage — just as in a chain
arithmetic calculation.
you should not press \ before keying in the percentage — just as in a chain
arithmetic calculation.