Which company first introduced the pocket scientific calculator with trigonometric functions that became a staple in mathematics education?

Before digital calculators transformed mathematics education, mechanical and analog tools were the cornerstone of computation. One company's innovative product launch in 1972 dramatically changed how students and professionals approached mathematical problems. This poll tests your knowledge of the pivotal brands that shaped mathematical tools and their iconic product developments that revolutionized the industry.

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Texas Instruments with the TI-30
Hewlett-Packard with the HP-35
Casio with the fx-10
Sharp with the EL-8