Which major mathematical software company was one of the first in the industry to shift from a perpetual license model to a subscription-based model in 2014, causing significant debate in the academic community?

The world of mathematical software has evolved significantly over the years, with various subscription and pricing models emerging to serve different user segments - from students to research institutions to commercial enterprises. This trivia question tests your knowledge about a significant shift in how one of the most prominent mathematical software packages is marketed and sold.

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Wolfram Research (Mathematica)
MathWorks (MATLAB)
Maplesoft (Maple)
PTC (Mathcad)