Which mathematical software company's "Seeing is Believing" marketing campaign in the 1990s revolutionized how visual mathematics was taught in universities?

The mathematics industry has seen remarkable product innovations driven by both technology and clever marketing. From basic calculators to sophisticated statistical software, these tools have revolutionized how we approach mathematical problems. This trivia question focuses on a pivotal marketing campaign that transformed public perception of a mathematical product and significantly boosted its adoption in educational settings.

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Wolfram Research (Mathematica)
MathWorks (MATLAB)
Texas Instruments (TI-83 Graphing Calculator)
SAS Institute (SAS Statistical Software)