Which innovative mathematical product, first introduced commercially in 1972, revolutionized engineering and mathematics education by allowing users to perform complex calculations without programming knowledge?

Product innovation in the mathematics education sector has transformed how we learn and apply mathematical concepts. From ancient abacuses to modern graphing calculators, tools have evolved dramatically to solve increasingly complex problems. This trivia question explores a significant product innovation milestone that changed how mathematics was taught and applied in professional and educational settings worldwide.

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HP-35 scientific pocket calculator, the first handheld scientific calculator that could replace a slide rule
Texas Instruments SR-10, the first algebraic entry electronic calculator
Casio FX-7000G, the first graphing calculator for consumer use
IBM Mathematical Formula Translator (FORTRAN), the first commercial computer algebra system