The Cheat Sheet seems to have some problems at the moment.  Click on the
List link and you end up at Program Structures

I want to generate a list like this (I only show the first 2 triplets here):

[

[a, 0, 0],

[b, 0, 0],

[c, 0, 0],

[a+1, 0, 0],

[b+1, 0, 0],

[c+1, 0, 0]

];

I tried something like this (which is ridiculously wrong)

posns =

    for (x = [1:4]) (
        [a + x-1, 0, 0],
        [b + x-1, 0, 0],
        [c + x-1, 0, 0]);

I do not want a list of list triplets, but rather a long one level list.

Without the Cheat Sheet to guide me, I am lost.

I welcome recommendations

Thanks

Jon

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Perfect!  Thank you!

On 7/29/2025 3:59 PM, Jordan Brown wrote:
On 7/29/2025 12:39 PM, Jon Bondy via Discuss wrote:
The Cheat Sheet seems to have some problems at the moment.  Click on the List link and you end up at Program Structures

Yeah, somebody is working on a pretty major overhaul of the manual and a lot of things are broken at the moment.

I do not want a list of list triplets, but rather a long one level list.

Each of which is a triplet, right?

That is, you want a list of triplets, not a list of triplets, each of which is a triplet.

I suspect that you want the "each" list comprehension operator, which busts apart lists.

Does this do what you want?

a = 100;
b = 200;
c = 300;

posns = [
for (x = [1:4]) each [
[a + x-1, 0, 0],
[b + x-1, 0, 0],
[c + x-1, 0, 0]
]
];

echo(posns);

yields (reformatted for readability):

ECHO: [
[100, 0, 0],
[200, 0, 0],
[300, 0, 0],
[101, 0, 0],
[201, 0, 0],
[301, 0, 0],
[102, 0, 0],
[202, 0, 0],
[302, 0, 0],
[103, 0, 0],
[203, 0, 0],
[303, 0, 0]
]

i will take a look at the cheat sheet now .. my work on it is in my own branch tho and i have not merged back nor done a PR