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Re: Calculator question
From: Frank Reed CT
Date: 2005 Feb 20, 19:22 EST
From: Frank Reed CT
Date: 2005 Feb 20, 19:22 EST
Me earlier:
"The most recent TI-89 has something like 3 megabytes of memory."
Alex wrote:
"Yes, this is one of those Celestaire things mentioned above. Weight 3 pounds."
"Yes, this is one of those Celestaire things mentioned above. Weight 3 pounds."
According to the postal scale on my desk, the casio fx250 weighs four
ounces while the TI-89 weighs eight ounces. If you throw in a manual and some
accessories you might get a couple of pounds. If you want to look at
one and check its size and weight in person, the TI-89 is widely available in
office supply stores. It's very popular for calculus classes.
And:
"And I afraid that it consumes power like my stupid laptop"
Fortunately, no. It performs like a calculator. You do have to change
the batteries once in a while, but they last for a very long time. The TI-89
also saves your work (many lines of calculation) when you turn it off. I turned
mine on yesterday and found a little calculation on the screen that I had left
there over six months ago. And the features are amazing. Check out www.ticalc.org for some good
comparisons.
These machines are not cheap, but there are plenty of lightly used
ones available on ebay at reasonable prices.
-FER
42.0N 87.7W, or 41.4N 72.1W.
www.HistoricalAtlas.com/lunars
42.0N 87.7W, or 41.4N 72.1W.
www.HistoricalAtlas.com/lunars