Which mathematical product design innovation was first introduced in the 1970s and revolutionized how students could visualize and manipulate mathematical functions?

Educational tools for mathematics have evolved significantly over the decades, incorporating new technologies and design principles. This poll tests your knowledge about a significant product design innovation that revolutionized how students learn and visualize mathematical concepts. Understanding the history of mathematical tools helps us appreciate the thoughtful design decisions that have made complex concepts more accessible to learners worldwide.

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Graphing calculator with computer algebra system
Digital protractor with laser measurement
Holographic 3D geometric modeling tool
Touch-screen interactive equation solver