Hewlett Packard 20S variants
Hewlett Packard 20S - in the traditional brown and blue, and also the much rarer green and purple.
The 20S was a reasonably powerful scientific calculator that was aimed at high school/ matric/ college/ university. It did not use Reverse Polish Notation (RPN), but standard algebraic notation.
Produced in the 1990's.
2,169
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Uploaded on April 28, 2013
Taken on April 25, 2013
Hewlett Packard 20S variants
Hewlett Packard 20S - in the traditional brown and blue, and also the much rarer green and purple.
The 20S was a reasonably powerful scientific calculator that was aimed at high school/ matric/ college/ university. It did not use Reverse Polish Notation (RPN), but standard algebraic notation.
Produced in the 1990's.
2,169
views
5
faves
0
comments
Uploaded on April 28, 2013
Taken on April 25, 2013