HP HP-67 User Manual

92 Function Keys
Example: Find the percent of increase of your rent 10 years ago
($70 per month) to today ($240 per month).
Press Display
70
240 ) 242.86 Percent increase.
The formula used is:wg = 9%CH.
y
Trigonometric Functions
Your HP-67 provides you with six trigonometric functions, which
operate in decimal degrees, radians, or grads. You can easily convert
angles from decimal degrees to radians or vice versa, and you can
convert between decimal degrees, and degrees, minutes, seconds.
You can also add angles specified in degrees, minutes, seconds
directly, without converting them to decimal.
Degrees/Radians Conversions
The and functions are used to convert angles between degrees
and radians. To convert an angle specified in degrees to radians,
key in the angle and press B} (FA. For example, to change 45°
to radians:
Press Display
45 45.
e
Radians.
To convert an angle specified in radians to decimal degrees, key
in
the
angle
and
press
("
3.
For
example,
to
convert
4
radians
to
decimal degrees:
Press Display
4
o
Decimal
degrees.

HP HP-67 Specifications

General

Brand	HP
Model	HP-67
Category	Calculator
Language	English