Which mathematical product design innovation is correctly credited to its creator?

Throughout history, mathematical tools and products have shaped education, research, and professional work. Some designs became so iconic they transformed how we interact with mathematics. From ancient calculating devices to modern software interfaces, the design evolution of these products reflects our changing relationship with numbers and formulas. Test your knowledge about famous mathematical product designs that revolutionized the field!

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The iconic TI-84 graphing calculator interface was designed by mathematician Benoit Mandelbrot in 1987
The Moebius strip logo for Mathematica software was designed by its creator Stephen Wolfram in 1988
The distinctive slide rule cylindrical design was patented by Ada Lovelace in 1842
The famous MATLAB matrix visualization interface was designed by Euclid Technologies in 1995