Which calculator company issued a major product recall in 1975 after discovering their scientific calculator produced incorrect answers for logarithmic calculations?

In the 1970s, the handheld calculator market revolutionized mathematics education and professional computation. But not all calculators were created equal! One particular model became infamous in the mathematics community for a critical design flaw that led to one of the most significant product recalls in educational technology history. Test your knowledge of this fascinating intersection of mathematics, product design, and consumer technology history.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Texas Instruments with the SR-51
Hewlett-Packard with the HP-35
Casio with the fx-10
Sharp with the EL-8