Calculating with times, Calculating with fractions -5 – HP 48g Graphing Calculator User Manual
Page 195
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Calculating with Times
To set or change the current time format:
1. Press
OK .
2. Press
to highlight the time format field.
3. Press
\*/- \
one or more times until the desired format is displayed.
4. Press OK to confirm your choice.
To put the current time on the stack (in number form):
■ Press fj^iTIME 1 TIME .
A number with HMS (hours-minutes-seconds) format is represented as
H. MMSSs:
H
Zero or more digits representing the number of hours.
MM
Two digits representing the number of minutes.
SS
Two digits representing the number of seconds.
s
Zero or more digits representing the decimal fraction part of
seconds.
To convert a time number
from
decimal hours to HMS format:
I. Enter the time number in decimal form.
2. Press P^fTIMEl fNXT)
16
To convert a time
number from HMS
format to decimal hours:
1. Enter the time number in HMS form.
2. Press
r^fTIME) fNXT I
HMS-;"
.
Date, Time and Fraction Arithmetic 16-3