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<1234567…34>
  • What's the deal with hash tables, anyway?As there's nothing in the [url=http://www.users.globalnet.co.uk/~jg27paw4/pourri/0-surc-contents.htm]Compendium[/url] about hash tables, and as I've …

    ... of hash table sizes to prime numbers.) Remember that "MOD x" gives ...
    Battle Bunny Battle Bunny January 2014 Sinclair Basic
  • BASIC-code challengeFor the BASIC-coders among us. There is a number that has following aspects. divided by 16 remains 15 divided by 15 remains 14 divided by 14 remain…

    ... decomposed in the multiplication of prime numbers, which..." blah blah blah, and ...
    Alessandro Tommasi Alessandro Tommasi July 2002 Sinclair Miscellaneous
  • Chris Moyles talking about the Spectrum on Radio 1 Did anyone hear Moyles and co. talking about the Speccy on his breakfast show yesterday morning. Was after the 830am news. He was on about PS2 and X…

    Did anybody hear 'The Material World' today with the feature on Prime Numbers ? Now that was banging.

    Dave

    [ This Message was edited by: dave_beer_uk on 2004-12-03 01:51 ]
    dave_beer_uk dave_beer_uk December 2004 Sinclair Miscellaneous
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    TAB?

    1 REM PRIME NUMBERS
    2 REM by Mike ...
    Geoff Geoff April 2006 Sinclair Basic
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... ]TAB?

    1 REM PRIME NUMBERS
    2 REM by Mike ...
    rich_chandler rich_chandler April 2006 Sinclair Basic
  • Disappearing/appearing effectI remember doing a small routine in BASIC which could be used to cover the attributes section randomly, until all 704 characters were filled with the…

    I thought that using cyphers and relatively prime numbers on an alphabet size of 768 would give a nice pseudo-random fill but after testing it out, it only gave a regular fill.
    Sorry.
    BloodBaz BloodBaz March 2008 Sinclair Basic
  • What if...What if when you were a kid in the early 80s your parents didn't buy you a Sinclair Spectrum as your first computer? I was thinking about this earli…

    ... , although one program involved calculating prime numbers, and another had to PLOT ...
    RST#08 RST#08 November 2008 Sinclair Miscellaneous
  • A couple of maths questions (theory, not application)1. Some bloke has worked out the value of PI to nearly 2.7 trillion digits, according to: [URL]http://news.bbc.co.uk/1/hi/technology/8442255.stm[/UR…

    ... of polynomial).

    edit: prime numbers are like the building blocks ... set of primes or is prime itself (e.g. 30=2 ... x 3 x 5), usually prime number theory is abstract though.
    ghbearman ghbearman January 2010 Chit chat
  • A couple of maths questions (theory, not application)1. Some bloke has worked out the value of PI to nearly 2.7 trillion digits, according to: [URL]http://news.bbc.co.uk/1/hi/technology/8442255.stm[/UR…

    ... Speaking of numbers, we all know what a prime number is ... but what use is a prime number in real life? ... the sky. By using prime numbers of teeth you ensure ... it when you see long numbers (in games or whatever ... read long strings of numbers when they are seperated ...
    joefish joefish January 2010 Chit chat
  • A couple of maths questions (theory, not application)1. Some bloke has worked out the value of PI to nearly 2.7 trillion digits, according to: [URL]http://news.bbc.co.uk/1/hi/technology/8442255.stm[/UR…

    ... ?. There'll be a prime number of teeth on at ... />
    You don't need prime numbers to do that, just two ... numbers that result in all the ... 54 nor 55 is a prime.

    Probably more ... make one of them a prime number of distance units, so ...
    Winston Winston January 2010 Chit chat
  • Pope coming to BritainThe Pope is coming to Britain tomorrow. Anyone care?

    ... worked out the first thirty prime numbers, then I couldn't in ... not showing the thirty-first prime, or the million and thirty ... -first prime, could I?

    If ...
    ewgf ewgf September 2010 Chit chat
  • I might try building a barebones PC.Our Packard Bell iMedia 5077 is literally on its last legs. Every time it is switched on something doesn't work, usually it is the sound, sometimes i…

    ... CPU and RAM - searches for prime numbers. Run it for 12 hours ... it overnight.

    The Prime 95 will stress the CPU ...
    ADJB ADJB July 2011 Chit chat
  • I might try building a barebones PC.Our Packard Bell iMedia 5077 is literally on its last legs. Every time it is switched on something doesn't work, usually it is the sound, sometimes i…

    ... CPU and RAM - searches for prime numbers. Run it for 12 hours ... it overnight.

    The Prime 95 will stress the CPU ...
    Alien 8 Alien 8 July 2011 Chit chat
  • Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …

    ... basic programs which search for prime numbers:

    [url]https://www ...
    dmsmith dmsmith December 2018 Hardware
  • Spreadsheet help (Excel numbers larger than 15 digits)Hi all, I have a problem with a spreadsheet not being able to give a result if there are more than 15 digits. Made a spreadsheet to add up the fib…

    ... to do calculations on fibonacci numbers.

    I ... repeating patterns. Discovered that prime numbers fall on specific rows in ... fibonacci number is also a prime.

    Will ... br />
    Example, greyed numbers are primes: https://www.dropbox ...
    FrankT FrankT December 2020 Chit chat
  • Spreadsheet help (Excel numbers larger than 15 digits)Hi all, I have a problem with a spreadsheet not being able to give a result if there are more than 15 digits. Made a spreadsheet to add up the fib…

    ... to 9, also joins + with - numbers, proving polarity sequence also in ... ?dl=1[/img]

    Prime numbers play an important role somehow ...
    FrankT FrankT December 2020 Chit chat
  • Spreadsheet help (Excel numbers larger than 15 digits)Hi all, I have a problem with a spreadsheet not being able to give a result if there are more than 15 digits. Made a spreadsheet to add up the fib…

    ... before, also showing how these numbers form structures has never been ... /> The first 12 numbers mirror the second 12 numbers. Polarization. The 4x6 ... and doubling rows fall on prime numbers. This has to be another ...
    FrankT FrankT December 2020 Chit chat
  • random numbersCan you write a piece of code that gets you a truly random number from the Spectrum, or is it only capable of generating a pseudo-random number (ie. …

    ... from a run of 65000+ numbers already decided)?

    A ...
    Spector Spector April 2001 Sinclair Miscellaneous
  • Spectrum board Issue numbersWhilst cataloging my spectrums I am documenting the issue numbers of the motherboards. so far I have (all spectrum or smegtrum + Issue TWO 3 3B …

    ... I am documenting the issue numbers of the motherboards.
    so ...
    mlasham mlasham January 2004 Sinclair Miscellaneous
  • Hit-Squad games collection numbersHello everybody i was wondering haw many hit squad games where released and what numbers they all where if you have any hit-squad rerelease games pl…

    ... games where released and what numbers they all where

    Retro-Traders Retro-Traders August 2005 Games
  • Pseudo random numbersHi everybody, I 'd like to convert a little program i wrote in VisualBasic6.0 to C or C++ to make it run faster and for training as i'm a very very n…

    ... VB gets 5 random generated numbers (min=1 max=10) and ... the very same random generated numbers (not only the first five ... generally:Can the pseudo random numbers generated in VB environment be ... way synchronized to pseudo random numbers generated in C or C ...
    andregiax andregiax April 2006 Sinclair Miscellaneous
  • Add the numbers?Yesterday morning (about 1am) I was flicking through cable to see what was on, and I turned to ITV and that boring space filler "The Mint" was on. An…

    ... /> [COLOR=red][B]Add the Numbers[/B][/COLOR]


    numbers, regardless of the maths symbols ... . You could also add the numbers in the colums that they ...
    ewgf ewgf September 2006 Chit chat
  • Margaret and ZX and Nippon People...Taken from Planet Sinclair site: "Huge numbers of Spectrums were sold around the world, making it by some way the most successful British computer ev…

    ... Planet Sinclair site:
    "Huge numbers of Spectrums were sold around ... a Spectrum to the Japanese Prime Minister as a symbol of ...
    Arda Arda February 2007 Sinclair Miscellaneous
  • Question about serial numbers, and issue marques.Hi, I don`t know if you can help me with this little question, but here goes. The spectrum computers have coloured serial numbers on the bottom of th…

    ... spectrum computers have coloured serial numbers on the bottom of the ...
    thx1138 thx1138 March 2007 Hardware
  • WANTED :- Crash mag numbers 75, 77, 78, 79, 81, 87, 89, 90,I need crash mags numbers 75, 77, 78, 79, 81, 87, 89, 90 I will buy or swap, i have loads of crash mags in ok to mint condition any one interested p…

    I need crash mags numbers 75, 77, 78, 79, 81, 87, 89, 90

    I will buy or swap, i have loads of crash mags in ok to mint condition any one interested please post here.
    swordheart swordheart November 2007 Wanted
  • problem using FRAMES to generate 'random' numbersI realise the pros use bytes from ROM to get their random numbers, presumably because they want to use FRAMES to synchronise the printing and avoid s…

    ... ROM to get their random numbers, presumably because they want to ...
    bigjon bigjon March 2008 Development
  • Numbers on my bottom!O.K. not on my bottom, but on the bottom of my machines. I have done searches on here over the last few hours trying to find out which colour of numb…

    ... find out which colour of numbers came first, second, third, etc ...
    Dingbat Dingbat August 2008 Sinclair Miscellaneous
  • Relevance of Serial NumbersHi, What is the relervance of Serial Numbers when buying 48k Spectrums? What do they all mean?

    Hi,

    What is the relervance of Serial Numbers when buying 48k Spectrums? What do they all mean?
    Lunar_Jetman Lunar_Jetman September 2008 Sales
  • Q on overflow on subtraction of 2 numbers.I came across this bit of code (paraphrased for clarity) that set the overflow flag on subtracting two numbers: result = A - B; overflow = (((A ^ B)…

    ... overflow flag on subtracting two numbers:

    result = A - B ...
    Arjun Arjun February 2009 Development
  • Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…

    ... been documenting the serial numbers of Spectrums, mostly through ... can be established, production numbers confirmed etc.
    Hope ... EDIT:
    The serial numbers are now being documented. ... the list of serial numbers [URL="ftp://ftp.worldofspectrum ...
    Jakeyw Jakeyw August 2009 Sinclair Miscellaneous
<1234567…34>

Latest Posts

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  • New video about S-video modification on Issue two 48K Spectrum.
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Related Threads

  • random numbersCan you write a piece of code that gets you a truly random number from the Spectrum, or is it only capable of generating a pseudo-random number (ie. …
  • Serial numbersHi,<br /> <br /> I have a 48k rubber key with the serial number D01-306635. Anyone know what the D is for? My other 48k models don't have it. I've ha…
  • Spectrum board Issue numbersWhilst cataloging my spectrums I am documenting the issue numbers of the motherboards.<br /> so far I have (all spectrum or smegtrum + <br /> <br /> …
  • Yes Prime MinisterI can't get the copy of YPM in the archive to work. it loads, asks you to choose keys an then stops completely on the first screen. I tried it on my …
  • Hit-Squad games collection numbersHello everybody i was wondering haw many hit squad games where released and what numbers they all where<br /> <br /> if you have any hit-squad rerele…
  • Pseudo random numbersHi everybody,<br /> I 'd like to convert a little program i wrote in VisualBasic6.0 to C or C++ to make it run faster and for training as i'm a very …
  • Add the numbers?Yesterday morning (about 1am) I was flicking through cable to see what was on, and I turned to ITV and that boring space filler "The Mint" was on. An…
  • Sooty's Fun With NumbersThis title is not listed in the database, but I have the sleeve for it (in with the Amiga version, in a job lot I picked up). It's an educational tit…
  • Question about serial numbers, and issue marques.Hi, I don`t know if you can help me with this little question, but here goes. The spectrum computers have coloured serial numbers on the bottom of th…
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