loop over list?

[Friedemann Groh]

Hi,

I'd appreciate if a loop counter could run in a list:

L = {1,4,8,10};

for i in L do( or list ) ( ... );

Is it very difficult to extend the M2-language in this way?

best

Friedemann

[Mahrud Sayrafi]

Hi Friedemann,

If I understand your question correctly, this is already possible:

i1 : for i in {1,2,3} do print i
1
2
3

i2 : for i in {1,2,3} list i

o2 = {1, 2, 3}

o2 : List

Mahrud

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[Friedemann Groh]

Thank you Mahrud, I'd better read the documentation.
best
Friedemann

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[Mahrud Sayrafi]

Other fun things to try:

i1 : for pair in {0,0}..{1,1} do print pair
{0, 0}
{0, 1}
{1, 0}
{1, 1}

i3 : for i in 0 .. 5 list i

o3 = {0, 1, 2, 3, 4, 5}

i4 : for i in 0 ..< 5 list i

o4 = {0, 1, 2, 3, 4}

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[Friedemann Groh]

I like the i1-example. At the moment I'm using Cartesian products of 1d-list instead. But your code is much better.
Thanks

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