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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 ... the Spectrum keywords, converted to BASIC. It builds the hash table ...
    Battle Bunny Battle Bunny January 2014 Sinclair Basic
  • 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 …

    ... , which compares two basic programs which search for prime numbers:

    [url ... more down to its Locomotive BASIC being more optimized, at least ...
    dmsmith dmsmith December 2018 Hardware
  • 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
  • Calculate if two segments cross in assemblerHello, Im developing a little game and I need something that I cant archieve. I have two lines (segment of a line). Line one: X11=coord X of …

    ... div., and no signed numbers.

    Basic idea. Cut each line ...
    tstih tstih September 2016 Development
  • 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
  • New Functions for Sinclair BasicA total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structu…

    ... compatible with their Beta BASIC equivalents. Some of the ... numbers (0-255) while their Beta BASIC equivalents can handle 16-bit numbers ... dealing with 16-bit numbers in BASIC would be tortuously ... to permit compilation with HiSoft BASIC.

    [code]
    chev chev November 2004 Sinclair Basic
  • Speeding up BasicHi, Does anyone know whether it is faster to use variables than numbers in Sinclair basic? What I mean for example, is Poke A,D quicker than Poke 5…

    Hi,

    Does anyone know whether it is faster to use variables than numbers in Sinclair basic?

    What I mean for example, is Poke A,D quicker than Poke 50000,100?

    Thanks

    Derek
    dmsmith dmsmith July 2005 Sinclair Basic
  • Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […

    ... : an interpreter of the Spectrum Basic that can run in a ... .tap[/url]

    Integer numbers only, operators, functions and instructions ...
    NotFound NotFound November 2006 Development
  • The Non Randomness of Sam BasicHows about this for weird. Hardly ever bothered with such simple stuff before but this is what I just did on the Sam ( as in a real one now I've got …

    ... a factor of how BASIC generates random numbers?

    :smile:
    DonkeyPong DonkeyPong June 2007 Sinclair Basic
  • BASIC error messagesDoes anyone know what all the numbers mean after the various error messages in Sinclair BASIC? Does anyone know how to instigate each error type?

    Does anyone know what all the numbers mean after the various error messages in Sinclair BASIC? Does anyone know how to instigate each error type?
    bcass bcass June 2008 Sinclair Miscellaneous
  • Just wrote my first useful working Speccy BASIC program in years...A nice UK National Lottery number generator. And not just any lotto number generator either. This one generates 8 lines of 6 numbers without replace…

    ... generates 8 lines of 6 numbers without replacement (i.e ... for picking his lotto numbers (tearing up 49 pieces ... pick 8 lines of lotto numbers every week.

    BASIC, I think I might ... lines of randomly picked numbers out
    410 ...
    BigBadMick BigBadMick November 2008 Development
  • Writing internet servers in ZX BASICNew Spectranet news! I have just finished adding the code to allow listening sockets to be used from BASIC. A simple example: [code] 10 %listen #4,…

    ... sockets to be used from BASIC. A simple example:

    numbers appear on the screen.
    BASIC now :-)
    Winston Winston August 2009 Hardware
  • Printing in 64 columns, from Basic?Not strictly a Sinclair Basic question but... Is there any known machine code utility that allows something similar to PRINT AT that can be called fr…

    Not strictly a Sinclair Basic question but... Is there ... that can be called from Basic but uses 64 or maybe ... />
    I'm creating small Basic programs that allow me to ... having to print lists of numbers and having to scroll to ... easy to call from Basic? Thanks!
    zxbruno zxbruno October 2009 Sinclair Miscellaneous
  • Question about operations and target numbers[size=1]Title should say *operators. It's been a long day.[/size] :p One of the homework problems my kids are working on consists on using a set of …

    ... using a set of 4 numbers and come up with expressions ... bad at Math! :razz: ). Could BASIC be used to help me ... reached by using 4 given numbers.

    To make matters ... worse, all numbers have to be used and ...
    zxbruno zxbruno October 2009 Sinclair Basic
  • Req' Help with Random numbersHello all, im new to the forum, i hope im putting this in the right place ... I would like to ask a question in the hope someone will be able to as…

    ... know a little about zx basic programming but this problem is ... would like to write in Basic, a routine that can choose ... random as spectrum basic can), a series of numbers between 1 and ...
    djloonix djloonix November 2009 Sinclair Basic
  • ZX BASIC (Boriel's Compiler) - LibrariesWell, we have a nascent option on a sprite library coming together, thanks to na_th_an's fourspriter being retooled for the job. It's not general pur…

    ... completely sinclair basic compatible (It even allows line numbers, it just ... easy fix to a Sinclair Basic Program) and a very ... able to write in basic and make M/C ... you're still using Hisoft Basic, it's time to ... -in functions for the basic compiler to make it ...
    Gedlion Gedlion May 2010 Development
  • bast, the Basic tapemaker for LinuxAnnouncing a new utility, [b]bast[/b], the BASIC Tapemaker. Now available: version 0.2.3 (alpha) for Linux. At: [url]http://github.com/ec429/bast/do…

    ... utility, [b]bast[/b], the BASIC Tapemaker.
    Now available: ... plain text files containing Sinclair BASIC source code, and produces ... given a source file without numbers (only labels) and directed ... as not only line-numbers of BASIC statements but also their ...
    AY Chip AY Chip September 2010 Sinclair Basic
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