I've used spirals for some stock market related stuff, and I found the
following to be helpful regarding evolutes (starting in the center and
working outward):
http://code.jsoftware.com/wiki/Doc/Articles/Play132
Henry Rich, J programming forum, 24 Dec 2012 and 27 Dec 2012
Hope this helps a bit!
On 8/29/17, Roger Hui wrote:
> The version I heard was that the math teacher wanted to have a rest, so
> assigned +/1+i.100 to the class. Gauss got the answer right away. The rest
> of the class labored for the entire hour. The only correct answer was
> submitted by Gauss.
Roger's version of the
On 8/28/17, Jose Mario Quintana wrote:
> You can try Zsban Ambrus' TacitToExplict script [0] "It's not perfect, so
> some strange verbs might not work."
> I hope it helps.
>
> [0] Scripts/TacitToExplicit Zsban Ambrus
> http://code.jsoftware.com/wiki/Scripts/TacitToExplicit
Thanks for this ci
Dear Group:
On 8/28/17, Jose Mario Quintana wrote:
> The tacit translator was my faithful teacher a long time ago and I still
> use it occasionally, nowadays to understand non-tacit code.
Is there any translator (or is it impossible?) to go the opposite way,
that is, tacit to explicit?
At my ba
I need to perform a certain action if an entire row in a transposed
table (i.e., originally a column) has empty values, that is, all boxed
data are the equivalent of a: or ''. The result should be a Boolean
value--"true" meaning that the entire row has empty values. (A
typical application would b
Hi, Group!
I'd like to be able to change this:
┌──┬──┬──┐
│4-Apr-1930│5-Apr-1930│6-Apr-1930│
└──┴──┴──┘
into this:
┌──┬──┬──┐
│1930-04-04│1930-04-05│1930-04-06│
└──┴──┴──┘
Although I've been using J
