
Henry Rich’s Deep Dive into J
The Array Cast
00:00
Is the Box a Special Data Type?
A box is just like an atom, it's a single scalar, well value. The contents can be any shape inside the box, but the external view of it is it's just a box. You don't, you're not going to get into conflicts with it, it's just going to be treated like any scalar. Yeah, in C terms, it's like a pointer to void. It refers to some data. So does that mean that my function applied with this parallel conjunction, and my function applied without the parallel conjunction, will give two different results? One gives a box result, one gives an unbox result? Correct, that's right. I mean, it
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