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Time Conversions; Angle Conversions - HP 35s User Manual

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Time Conversions

The HP 35s can convert between decimal and hexagesimal formats for numbers.
This is especially useful for time and angles measured in degrees. For example, in
decimal format an angle measured in degrees is expressed as D.ddd..., while in
hexagesimal the same angle is represented as D.MMSSss, where D is the integer
pat of the degree measure, ddd... is the fractional part of the degree measure, MM
is the integer number of minutes, SS is the integer part of the number of seconds,
and ss is the fractional part of the number of seconds.
To convert between decimal format and hours minutes, and seconds:
1. Enter the number you wish to convert

2. Press
5
Example:
Converting Time Formats.
How many minutes and seconds are there in 1/7 of an hour? Use FIX 6 display
format.
Keys:
8

 
8

Angle Conversions

When converting to radians, the number in the x–register is assumed to be degrees;
when converting to degrees, the number in the x–register is assumed to be radians.
to convert to hours/degrees, minutes, and seconds or press
to convert back to decimal format.
Display:
()

 



()

Description:
Sets FIX 6 display format.
1/7 hour as a decimal fraction.
Equals 8 minutes and 34.29
seconds.
Restores FIX 4 format.
Real–Number Functions
4-13

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