16 Feb
2022
16 Feb
'22
2:13 p.m.
Hoi.
[2022-02-16 00:54] arnold(a)skeeve.com
Dave Horsfall <dave(a)horsfall.org> wrote:
Decoding the program with the manpage:
99k set scaling factor to 99 (i.e. 99 digits on output)
2v square root of 2
p print it (but leave it on the stack)
8o switch to octal output
p print the same value (now in octal)
q quit
More interesting is the question why you need sqrt(2) in octal?
meillo
On Wed, 16 Feb 2022, George Michaelson wrote:
I guess I'm not enough of a greybeard:
$ dc
99k2vp8opq
1.4142135623730950488016887242096980785696718753769480731766797379907\
32478462107038850387534327641572
1.3240474631771674622042627661154672512575174353366027242235650231664\
2753102603147144252257620301035270505416503
I recognize the first value as the square root of two. What is
the second value? I use BC as a daily driver like most people. I
never quite got DC, and
wondered at the duality of them. Very interesting to have the background
explained.
You know you're a greybeard if you can remember why the DC sequence
"99k2vp8opq" was so popular...
-- Dave