Eddie's Math and Calculator Blog
It's all about mathematics and calculators
Showing posts with label
HHC 2026
.
Show all posts
Showing posts with label
HHC 2026
.
Show all posts
Friday, November 13, 2026
Spotlight: HP 35 Calculator (1972)
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Spotlight: HP 35 Calculator (1972) Here it is, the first every handheld scientific calculator: the Hewlett Packard HP 35 from 1972! I go...
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