Castaway (Mi-Sex song)

"Castaway" is a song by New Zealand group Mi-Sex, released in May 1982. The song peaked at number 23 in Australia.

"Castaway"
Australian/New Zealand art work
Single by Mi-Sex
B-side"Young Maniacs"
ReleasedMay 1982
StudioStudios 301, Sydney, Australia
GenreSynth-pop, electronic
Length3:25
LabelCBS
Songwriter(s)Murray Burns, Kevin Stanton, Paul Cunningham, Steve Gilpin
Producer(s)Peter McIan
Mi-Sex singles chronology
"Shanghaied!"
(1981)
"Castaway"
(1982)
"Down the Line (Makin' Love on the Telephone)"
(1982)

Track listings

Australia/New Zealand 7" (BA 222930)[1]

  1. "Castaway"
  2. "Young Maniacs"

North America 7" (Epic – 34-04419)

  1. "Castaway" - 3:25
  2. "Don't Look Back in Anger" - 3:16

Charts

Chart (1981) Peak
position
Australian Kent Music Report [2] 23
gollark: It allocates memory and doesn't consider it a side effect.
gollark: I didn't do any horrible homoglyph hacks with THAT.
gollark: It uses the function, yes.
gollark: So, I finished that to highly dubious demand. I'd like to know how #11 and such work.
gollark: > `x = _(int(0, e), int(e, е))`You may note that this would produce slices of 0 size. However, one of the `e`s is a homoglyph; it contains `2 * e`.`return Result[0][0], x, m@set({int(e, 0), int(е, e)}), w`From this, it's fairly obvious what `strassen` *really* does - partition `m1` into 4 block matrices of half (rounded up to the nearest power of 2) size.> `E = typing(lookup[2])`I forgot what this is meant to contain. It probably isn't important.> `def exponentiate(m1, m2):`This is the actual multiplication bit.> `if m1.n == 1: return Mаtrix([[m1.bigData[0] * m2.bigData[0]]])`Recursion base case. 1-sized matrices are merely multiplied scalarly.> `aa, ab, ac, ad = strassen(m1)`> `аa, аb, аc, аd = strassen(m2)`More use of homoglyph confusion here. The matrices are quartered.> `m = m1.subtract(exponentiate(aa, аa) ** exponentiate(ab, аc), exponentiate(aa, аb) ** exponentiate(ab, аd), exponentiate(ac, аa) ** exponentiate(ad, аc), exponentiate(ac, аb) ** exponentiate(ad, аd)) @ [-0j, int.abs(m2.n * 3, m1.n)]`This does matrix multiplication in an inefficient *recursive* way; the Strassen algorithm could save one of eight multiplications here, which is more efficient (on big matrices). It also removes the zero padding.> `m = exponentiate(Mаtrix(m1), Mаtrix(m2)) @ (0j * math.sin(math.asin(math.sin(math.asin(math.sin(math.e))))), int(len(m1), len(m1)))`This multiples them and I think also removes the zero padding again, as we want it to be really very removed.> `i += 1`This was added as a counter used to ensure that it was usably performant during development.> `math.factorial = math.sinh`Unfortunately, Python's factorial function has really rather restrictive size limits.> `for row in range(m.n):`This converts back into the 2D array format.> `for performance in sorted(dir(gc)): getattr(gc, performance)()`Do random fun things to the GC.

References

  1. "Mi Sex Castaway". discogs. Retrieved 13 October 2017.
  2. Kent, David (1993). Australian Chart Book 1970–1992. St Ives, NSW: Australian Chart Book. p. 204. ISBN 0-646-11917-6. NOTE: Used for Australian Singles and Albums charting from 1970 until ARIA created their own charts in mid-1988.
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