Comments by "Lawrence D’Oliveiro" (@lawrencedoliveiro9104) on "Floating Point Numbers (Part1: Fp vs Fixed) - Computerphile" video.

  1. For me, the moment was seeing “n = n + 1” for the first time.
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  2. 6:17 What’s missing is called “dynamic range”. Also note it’s not about large versus small numbers, but large versus small magnitudes of numbers. Remember that negative numbers are smaller than positives ones (and zero).
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  3. The “s” in “maths” is not silent: mathS!
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  4. We already are using 64 bits.
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  5.  @EwanMarshall  On the contrary, rounding happens all the time. With currency conversions and compound interest, it is unavoidable. There is no such thing as arbitrary-precision fractional arithmetic.
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  6. 5:22 It’s just easier to say “two to the sixteen”.
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  7. 4:58 the term is BINARY -- except that seems to have developed other connotations nowadays ...
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  8. Feel free to come up with a solution.
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  9. 12:48 C-language trivia question: are the parentheses in “(1 << 24) - 1” needed?
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  10. 15:34 Ah, but it could make a difference if you are trying to do very long baseline interferometry. For example, setting up a future radio telescope array. Maybe call it the “Square Light-Year Array”.
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