Which innovative pricing strategy did Wolfram Research implement for its flagship product Mathematica that transformed mathematics software pricing in educational markets?

In the world of mathematics education products, pricing strategies often follow interesting patterns based on market research, perceived value, and educational impact. Specialized mathematical tools, textbooks, and software packages employ different pricing models compared to general consumer goods. Test your knowledge about a famous pricing strategy employed by one of the world's leading mathematics software companies that revolutionized how such products are valued in educational markets.

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Tiered licensing based on computational complexity - users pay based on the complexity of calculations they perform
Educational institution multiplier model - where pricing scales with the institution's mathematics department ranking
Home-use licensing for academic users - allowing educators and students to use professional versions at home at steep discounts
Subscription model with differential equations - where price increases with each specialized mathematics module activated