Richard H

Richard H

  • Commented on The impotence of the long-distance trillionaire
    "harbour buoyage is arranged to be the right way round in the direction where it's most likely to be a matter of life and death to get it right." Is that in IALA region A or B? Which is to...
  • Commented on The impotence of the long-distance trillionaire
    " There are no circumstances where I would be comfortable identifying someone as 'Indian'." Then how do you refer to the billion-plus citizens of the Republic of India?...
  • Commented on The impotence of the long-distance trillionaire
    might...
  • Commented on The impotence of the long-distance trillionaire
    "Nowadays East Indian has been replaced with South Asian, just as Oriental has been replaced by Asian (as compared to my childhood). I understand in the UK the usages are Asian and East Asian respectively, but that's gathered from context...
  • Commented on The impotence of the long-distance trillionaire
    Sure. But the aerodynamics of helicopter flight don't vary according to which jurisdiction you're in :-)...
  • Commented on The impotence of the long-distance trillionaire
    "the "where you come down rule": The pilot of a plane with lifting surfaces has a lot of time to pick his crash-site, whereas rotor craft just fall down where they fail." That's not entirely accurate. I'm not familiar (nor...
  • Commented on Holding pattern 2022 ...
    Nancy Lebovitz@1721: "I'm surprised that complex numbers are a problem in computer languages. Isn't algebra a mechanical process at that level?" Yes, but algebra and numerical analysis are different things. The complex (and real) numbers studied by mathematicians comprise fields,...
  • Commented on Holding pattern 2022 ...
    Squeak: I downloaded Squeak50.sources and so far as I can tell it is using the same naive algorithms for Complex / and abs() as my examples. There are things called absSecure, divideSecureBy and divideFastAndSecureBy, which scale their calculations to avoid...
  • Commented on Holding pattern 2022 ...
    AlanD2@1644: Looks like a summary of the specification of a test suite for a complex library, so all you have to do is find the source of the suite. Smalltalk and complex: I just found this: GNU Smalltalk Users Guide...
  • Commented on Holding pattern 2022 ...
    "It’s done well enough to run sophisticated machines like the world’s chip-making machinery and the CanadArm, to operate power grids, to make billions of buckaroonies for banks, so I’m going say we got the maths decently correct." I doubt that...
  • Commented on Holding pattern 2022 ...
    Another popular Fortran gotcha on the same lines was this: DO 10 I = 1.100 ... 10 CONTINUE I recall that John Larmouth's "Serious Fortran" papers were a valuable source for how not to fall into the many traps....
  • Commented on Holding pattern 2022 ...
    ... and the "alternate RETURN" which goes to somewhere it didn't come from ......
  • Commented on Holding pattern 2022 ...
    StephenNZ@1562: "COBOL's PERFORM paragraph-1 THRU paragraph-n construct [...] sometimes encountered a GOTO where the destination was outside the range [...] then GOTO back somewhere within the range [...] and when it got to the end of paragraph-n, the implied "return"...
  • Commented on Holding pattern 2022 ...
    AlanD2@1533: "Cobol's ALTER statement, which was used to change the target of a GO TO statement." and the Fortran equivalent, the assigned (not computed, that was something else) GOTO. Though ALTER looks worse. Elderly Cynic@1541: "[overlay loader as] poor man's...
  • Commented on Holding pattern 2022 ...
    "What "period" are you talking about?" Very roughly, 50s to mid-60s. The period when FORTRAN was being developed. By IBM, for use on IBM hardware - which didn't even support a hardware stack, let alone dynamic memory. The first computer...
  • Commented on Holding pattern 2022 ...
    Martin Rogers@1508: "Why wait so long before fixing the language?" One reason would be hardware, or the lack of it. Mainframes of that period simply didn't have enough physical memory for it to be worth using dynamic allocation. Most of...
  • Commented on Holding pattern 2022 ...
    whitroth@1439 "I don't speak Mandarin. Nor any other dialect of Chinese." Nor do I. My point was simply that in languages that use them, syllabic tones are an intrinsic part of the word, just like its consonants and vowels. Changing...
  • Commented on Holding pattern 2022 ...
    "It's a tonal language. The meaning of a word changes with the tones used. " Not exactly. Tones are not modifiers any more than vowels or consonants are. Changing the tone of a syllable produces either a completely different and...
  • Commented on Holding pattern 2022 ...
    Is there an echo in here?...
  • Commented on Holding pattern 2022 ...
    paws4thot@1296: "a tonne is 1_000kg, known in some nations as a "long tonne" because the word tonne contains 5 letters, not 3 as in an (imperial) ton (which is heavier and known as a "short ton" in those nations.)" My...
  • Commented on Holding pattern 2022 ...
    "I was wondering whether countries that had universal healthcare also automatically had universal healthcare record keeping. If yes - then such countries' local scientists/docs should (theoretically - with appropriate privacy protocols) be able to pull up in-depth longitudinal medical data...
  • Commented on Holding pattern 2022 ...
    "Besides smartphones my experience of GPS is for landscape mapping purposes, measuring field sizes and crop areas. The kit used was a backpack reciever linked to a laptop with the mapping software on it. The results were accurate to less...
  • Commented on Holding pattern 2022 ...
    "Google usually blurs out sensitive installations when a country requests it. If you know where to find sensitive installations in the U.K., take a look for them in Google Maps to see what I mean." Any examples? I've looked at...
  • Commented on Holding pattern 2022 ...
    "In the last week or so Google removed the blur over Russian military bases. Prior to that they haven't actually been visible." According to Google (as reported by various sources e.g. the Independent), that's not the case. Since I don't...
  • Commented on Holding pattern 2022 ...
    "As I type this, a NATO AWACS E-3A and RIVET JOINT RC-135W are over Romania just south of Ukraine and near the Black Sea." .., and now there's an RC-135 flying up and down and practising procedure turns at FL380...
  • Commented on Behind the Ukraine war
    I have a vague (probably incorrect) recollection of once reading that some passages which look weird when read literally in the Greek make more sense when translated back into the original Aramaic, because the underlying verse form or folk saying...
  • Commented on Behind the Ukraine war
    And they might develop some of what we think of as modern computer theory, and truly fractal design and math, just by having a wildly different development of their mathematics. I'd be interested to know what you think of as...
  • Commented on Behind the Ukraine war
    You'll find an alternative take on ethnomathematics at Dr Ron Knott's page on Egyptian fractions and similar topics. Arguably more important than doubling and halving is dividing up pies. In short, how do you do fractions when only 1 is...
  • Commented on Behind the Ukraine war
    EC @ 585: I really don't understand this obsession over bases, especially as relates to computing; any base works perfectly well, and you don't even need the same base for every position. Agreed. I think most people simply don't understand...
  • Commented on Behind the Ukraine war
    Old brass? At the very least C10100 oxygen-free copper, surely?...
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