> On Sep 28, 2017, at 2:45 PM, Erling Hellenäs <[email protected]> wrote:
>
> 4 [`(] (] , [ + [: {: ]) [ $: [: <: ])@.(<) 8
> 4 9 15 22 30
Super!
4 [`(] (] , (+{:)) ($:<:) )@.< 8
> /Erling
>
> On 2017-09-28 20:33, Skip Cave wrote:
>> What is a good way to generate this sequence in J?
>>
>> 4,(4+5),(4+5+6),(4+5+6+7),(4+5+6+7+8)+.....
>>
>> Show one way using i. and insert.
>>
>> Show another way using recursion.
>>
>> Skip
>>
>> Skip Cave
>> Cave Consulting LLC
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>
>
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