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HP-21 Scientific Pocket Calculator

The calculator comes complete with Cover, Adaptor and Owner's Handbook

The first of the 20 series is essentially an HP-35 in a smaller package. 
Since the HP-21 has 33% more ROM than the HP-35 it has room for a few extra features, namely:

•	Trig functions in radian mode (The mode is selected by a slide switch)
•	Display formatting (DSP # displayed # decimal places in scientific mode and DSP # displayed #
        decimal places in fixed mode)
•	Polar/rectangular conversions
•	Storage arithmetic. This is implemented using special keys for M+, M-, Mx and M/

The calculator is in very good condition with no significant user traces.

The calculator etc. will be packed carefully.

Condition: Very good

Hewlett Packard HP-21 Scientific Pocket Calculator - Computer - Without original box

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+ Extra item (see description)

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Hewlett Packard HP-21 Scientific Pocket Calculator - Computer - Without original box

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