Which calculator company pioneered the first retail 'scan-and-learn' technology that could instantly recognize and solve handwritten math equations?

In the world of retail technology, mathematical algorithms have revolutionized how products are marketed, priced, and distributed. One major innovation was the development of specialized graphing calculators, which transformed both mathematics education and retail technology. Test your knowledge about how a particular calculator brand created a game-changing retail innovation that changed the industry forever.

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Texas Instruments with their TI-Nspire CX CAS Vision technology
Casio with their ClassPad Recognition System
HP with their Prime Visual Mathematics platform
Sharp with their EL-WriteView scanning technology