HP-49 Series
The HP 49G series are Hewlett-Packard (HP) manufactured graphing calculators. They are the successors of the popular HP-48 series.
There are four calculators in the 49 series of HP graphing calculators. These calculators have both algebraic and RPN entry modes, and can perform numeric and symbolic calculations using the built-in Computer Algebra System (CAS), which is an improved ALG48 and Erable combination from the HP-48 series.
Read more about HP-49 Series: HP 49G, HP 49g+, HP 48gII, HP 50g, Programming, HPGCC For The 49g+/50g, Emulators For The 49 Series, ROM Updates
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