OFFSET
1,2
COMMENTS
The format is loosely defined - leading zeros of both hours and minutes disappear.
Changing the tolerance in the JavaScript program changes the results - try 0.01 for example, and we are allowed 10:54.
It is debatable whether 00:00 should be 12:00, but I have used 00:00. As the clock is analog, 13:05 is not valid - am and pm is usually left to discretion.
LINKS
Maths is Fun, Analog Clock
Maths is Fun, Set the time
NAWCC, How do clocks work?
Wikipedia, Clocks
Wikipedia, Watches
FORMULA
a(n) = a(n-1) + a(n-2) - a(n-3) for n=4..11. - Colin Barker, Aug 19 2014
a(n) = (-423 - (-1)^n + 422*n)/4 for n=1..11. - Colin Barker, Aug 19 2014
EXAMPLE
At 04:22 the minute hand covers the hour hand.
PROG
(JavaScript)
for (h=0; h<12; h++)
for (m=0; m<60; m++)
if (Math.abs(h/12+m/720-m/60)<0.007) {if (m<10) m="0"+m; document.write(h.toString()+m+", "); }
CROSSREFS
KEYWORD
fini,full,nonn
AUTHOR
Jon Perry, Aug 13 2014
STATUS
approved