Formula that produces floppy disk sizes

lemmy.blahaj.zone

Formula that produces floppy disk sizes

lemmy.blahaj.zone

Cevilia (she/they/…)@lemmy.blahaj.zone to

196@lemmy.blahaj.zoneEnglish · 2 months ago

f(1) = 8
f(2) = 5.25
f(3) = 3.5
f(4) ≈ 2.4
f(5) ≈ 1.67

And going the other way f(n-1) = (¹¹/₇ f(n) - ¹/₄) we get laserdiscs?

f(1) = 8
f(0) ≈ 12.32

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kittenz@lemmy.blahaj.zone
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2 months ago
Why those two equations?
- Cevilia (she/they/…)@lemmy.blahaj.zoneOP
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  2 months ago
  Because that’s the sequence I wanted the result to be - 8 ➡️ 5.25 ➡️ 3.5
  
  I knew they wouldn’t multiply or divide exactly so there’d need to be a second term in there.
  
  a turned out to be ⁷/₁₁, and b turned out to be ¹/₄.

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