Exactly, pascal is a very beautiful programming language. It is all based on mathematical variation.
Huh? What are "mathematical purposes"? What is "all based on mathematical variation"?
Pascal is a block-structured procedural language like many many others, starting with Algol. Its main strength is its strong-typing, which helps prevent harm from human coding errors. Advocates of weakly-typed languages such as the C-family may see strong typing as training wheels and prefer to have more coding freedom despite the risks. If you know Pascal, you almost know the languages Delphi and even Ada, its
I've written thousands of lines of Pascal. When I used it I liked it a lot. When I used something else I often liked that too. Programming languages are mathematically equivalent, in a Turing-machine sense. Programmers love language wars - squabbling over features - but they usually know that anything that can be done in one language can be done in any other, easily or not. All the high-level languages generate machine code - the machine code set is fixed and finite for any given machine. Pascal would not be my first language of choice today but it still works just fine.
This coin architecture though - now that's beautiful.