What analogue of Mathcad for MAC OS do you recommend?

Question

macOS

It is required to simulate some financial processes (from the point of view of mathematics - not complicated: multiplication / division, integrals, factorials, without matrices) and display them graphically, preferably in 3D; but 2D is also acceptable.
Found mentions of several tools
Math Studio
Skilab
Octave Put
everything and test - there is neither desire nor time.
Tell me what will be more optimal and easier to learn. After all, already 25 years ago I defended myself and a lot of things flew out of my head a long time ago.

Answer 1

Mathematica
It is paid, but there is a trial.