> What was the earliest of these tools? Mathcad? Mathematica? Maple?
The first version of MathCad (for DOS) came in 1986, but it's difficult to find info on how it looked like. Did it already have the notebook interface? This is how MathCad looked in 1989:
The first version of MathCad (for DOS) came in 1986, but it's difficult to find info on how it looked like. Did it already have the notebook interface? This is how MathCad looked in 1989:
https://en.wikipedia.org/wiki/File:Mathcad_252_screenshot.pn...
Mathematica 1.0 came in 1988, and it definitely had the notebook-interface.
https://reference.wolfram.com/legacy/v1/contents/whatis.html
Wikipedia says Maple got its first graphical interface in 1989.