"Stopwtch"
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Last updated 11/23/97
This program is written for the TI-82 calculator by Tony
Wayne. This program acts like a stop watch. It works by first
calibrating the program. It must be calibrated before each use. For
example if you were to time a falling rock 10 times, then calibrate
the program once before using it. But if you were to drop the rock 10
times. Do some statistics or save some numbers in either lists,
matrices or varaibles then you'll need to re-calibrate the program
before doing another set of calculations. The program works by
counting. When you calibrate the program, you are telling the program
how long a unit of time is and the program counts during this time
interval. It uses this calibrated number to time. It is not accurate
at times less than about 0.20 seconds because of the way the key
board is buffered. But human error is 0.10 seconds so ...who cares.
The software is free and may be distributed freely as long as my
name remains in it. If you use the software,
please e-mail me by clicking
here. If people like it and use it, I'll make the effort to post
some more of my software.
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Click here to download
the graphical uuencoded program
for the TI-82. You will need TI's GraphLink
software and cable. Under the "File" menu select "Utilities"
to UUDecode the downloaded file. With TI's GraphLink
cable connected between the computer and calculator,
"send" the program to TI-82 calculator.
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Click here to download the graphical uuencoded program
for the TI-83. You will need TI's
GraphLink software and cable. Under the "Tools" menu
select "UUDecode" to read the downloaded. With TI's
GraphLink cable connected between the computer and
calculator, "send" the program to TI-83 calculator.
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(Below are screen shots from the program.)
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The first step is
to calibrate the program. The longer hte
calibration time the more accurate the
measurement.
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This menu shows
up after the calibration process.
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