How could I create and operate on a multidimension...

# mathematics

[mccorby]

How could I create and operate on a multidimensional structure? I can do it with Matrix butI get a bit lost when I try to do it with a more generic structure

[altavir]

Documentation is not the best at the moment. First of all, you need to understand what is the type of the items. Second, you need to provide a context both for items and for the structure itself. Basically, you create a field (/ring/space) for your ND structures and operate inside (as in with/run) of it. Like it is done here: https://github.com/mipt-npm/kmath/blob/master/examples/src/main/kotlin/scientifik/kmath/structures/NDField.kt. This looks rather complicated so if all you want is to work with real numbers, you should look into post above and use ready extensions for real numbers.

[altavir]

The complicated structure is done to provide a base for different types of nd structure content.

[mccorby]

Thanks, Alex. I need to work with BigInteger numbers. I need then to add context and structure, don’t I?

[altavir]

No, actually, you don't at least for BigDecimal. Not sure about BigInteger. We have a context for them and all that is left is to male NDField.boxing(BigDecimalField, dim, dim).run{...}. And it is exactly why we do architecture this way.

[altavir]

I have to start a lecture now, but I will answer all questions at the evening.

[mccorby]

👍