Which revolutionary product innovation first allowed students to visualize and manipulate 3D mathematical functions in real-time on personal devices?

Mathematics education has been transformed by digital tools and innovative products that enhance learning experiences. From basic calculators to advanced modeling software, product innovation in mathematics has revolutionized how concepts are taught and understood. This poll tests your knowledge about a significant product innovation that changed how mathematical equations are visualized and manipulated in educational settings.

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Graphing calculators with 3D plotting (Texas Instruments TI-92, 1995)
Microsoft Mathematics 4.0 software (2011)
Wolfram Alpha computational engine (2009)
GeoGebra 3D Calculator app (2014)