Computer-Algebra-System, And okay, you can do lots of math... even it all without tools. I remember having a basic math test that was fully analog. But... whi

Computer-Algebra-System, And okay, you can do lots of math... even it all without tools. I remember having a basic math test that was fully analog. But... while knowning all the basics is useful. e.g. knowing how to compute a square root. It is also important to know how to combine all these things and reach higher. Tools let's you reach higher.