Maths is Strange

Basic maths is suprisingly complex. It requires knowlege of the standard order of operations, which can be easy to forget if you are writing a program in a language like Python. In Amanatsu, however, a + is just a function in the same way as print.

Technically, it's not a function in the same way a function you create is a function. It requires a special code case in the compiler because you can't really build an addition function from scratch in an interpreted programming language.

+ being a function means that it operates directly on the stack. There is no such thing as an order of operations because it is unnecessary; If something looks like it is called first, it is.

Example of Adding two numbers together:

3 4 +
# The number at the top of the stack is, of course, 7 #

Even complex expressions are ridiculously readable.

7 8 + 9 * 3 -

This evaluates to 7 and 8, times the result by 9, and take 3 from the result of that. In usual mathematics this could be written in several ways, due to order of operations.

This: 7+8*9-3 is not the same thing, even if it looks like it.

This: 9(7+8)-3 is the same thing, but arguably less readable.

Neither of these are necessarily the wrong way of doing things, but they are certainly weird.