Which mathematical software product was the first to introduce a symbolic computation engine that could manipulate algebraic expressions rather than just calculate numerical results?

The development of advanced mathematical tools and software has revolutionized how mathematics is taught and applied. From basic calculators to sophisticated computational engines, these products have shaped mathematical education and research. This poll tests your knowledge about a significant milestone in the development of mathematical software that changed how complex calculations are approached in academic settings.

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Mathematica (by Wolfram Research, 1988)
MATLAB (by MathWorks, 1984)
Maple (by Waterloo Maple Inc., 1982)
TI-Nspire CAS (by Texas Instruments, 2007)