You appear to be taking two contrarian stances:That's not "math," at least not the kind of math that matters to engineers. Try searching for a particular calculus proof - how do you enter mathematical symbols into the search box? How do you take math notes when some dopey handwriting recognition keeps trying to turn your integral symbol into an "s." Or, if it lets you just write free ink, try doing a complicated math derivation with your finger on a 10" screen. I'll take a pencil and the margins of a real textbook any time.
The fact that an ebook version of an engineering textbook can double as a fancy calculator is of no interest to me if it can't also function as a proper textbook. I had my matlab and my HP-48 for calculations. That's not what a textbook is for. (Indeed, of what use is learning to perform calculations by using my textbook to "drag things into holding areas to manipulate them?" When I get a job I'm going to have to use a computer or calculator or pencil and paper to do my work - learning a textbook-specific user interface to perform a particular task is of no use to anyone.
- I can't do math on a computer.
- Doing math on a computer serves no purpose.
There is something fundamental about all of this that you don't get. Our expectations of mathematics changes. If you had studied electricity in Maxwell's day, then you would not have had the benefit of vector notation. All of your derivations and computations would have been done component by component. Vector notation was invented later and substantially eased algebra and calculus in multiple dimensions.
If you had been in primary school in 1900, then the arithmetic that you did then was substantially different at least in degree than the arithmetic that you and I did in elementary school. Those children back then had to add 25 five-digit numbers using pencil and paper. Many of them learned to do it in their heads. With the advent of the calculator and adding machine, however, that skill became worthless.
Just like the component-by-component vector mathematics and the addition of pages of numbers, many of our skills will also become irrelevant as technology advances. New technology will also allow us to create new skills that were not possible before.
Relax. It will be OK.