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Re: Calculator question
From: Frank Reed CT
Date: 2005 Feb 19, 19:36 EST
From: Frank Reed CT
Date: 2005 Feb 19, 19:36 EST
Alex you wrote:
"a) sexagesimal input (degrees/minutes/seconds) and output,
b) at least 3 independent memories (Casio has only one).
c) dual power (solar and battery).
The last requirement excludes bulky, heavy
and expensive things with graphical displays hudge memory, etc.,
of the type Celestaire sells.' "
b) at least 3 independent memories (Casio has only one).
c) dual power (solar and battery).
The last requirement excludes bulky, heavy
and expensive things with graphical displays hudge memory, etc.,
of the type Celestaire sells.' "
Try searching ebay for "programmable calculators". There are many different
models. The most recent TI-89 has something like 3 megabytes of memory. It can
take simple programming and also relatively sophisticated code, and they do
*symbolic* algebra, trig, and differentiation and integration, too. But no solar
power, AFAIK.
-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
