Which mathematician was famously used as the brand ambassador for Texas Instruments' advanced graphical calculators in their 2015-2018 global campaign?

Brand ambassadors aren't just for fashion and sports - they exist in mathematics too! Various mathematical software companies, calculator manufacturers, and educational platforms have used notable mathematicians, characters, or symbols as their brand representatives. This poll tests your knowledge of these mathematical brand ambassadors who have helped make complex concepts more approachable to students and professionals alike.

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Katherine Johnson, whose calculations were critical to NASA's early space missions
John Nash, the Nobel Prize-winning mathematician portrayed in 'A Beautiful Mind'
Hannah Fry, the British mathematician known for her work on mathematical patterns in human behavior
Terence Tao, Fields Medal winner and child prodigy in mathematics