Tag Archives: mathematics

Javascript Incrementing and Decrementing Suffix Tutorial

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The recent Javascript Incrementing and Decrementing Primer Tutorial broached … prefix syntactical Javascript Incrementing and Decrementing of variables … and, today, we extend that to … suffix syntactical Javascript Incrementing and Decrementing of variables … and to … both … … Continue reading →

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Javascript Incrementing and Decrementing Primer Tutorial

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Sometimes writing Javascript code we’ve let code like … <script type=’text/javascript’> var counter=null; function initializeCounter() { counter=0; } function incrementCounter() { if (counter == null) { counter=0; } ++counter; } if (eval(Math.floor(Math.random() * 1746765765) % 2) == 1) { initializeCounter(); … Continue reading →

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Prime Numbers Fractional Favicon Canvas Tutorial

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Further to yesterday’s Prime Numbers Fractional Favicon Tutorial … What’s the HTML5 canvas element got to do with web browser tab icon “favicon” graphic content? Well, as per the excellent advice ideas on this webpage, thanks, we can use the … Continue reading →

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Prime Numbers Fractional Favicon Tutorial

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So what’s the “favicon” in today’s blog posting title? If none the wiser, what about the (pretty much standalone Javascript) code below? var rldone=”; function arsthen() { if (document.getElementById(‘myicon’)) { document.getElementById(‘myicon’).href=’/favicon’ + rldone + ‘.ico'; if (rldone == ”) { … Continue reading →

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Variety of Prime Numbers Fractional Forms Tutorial

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Previous work of Prime Numbers Fractional Forms Tutorial and preceeding dealt with … your garden variety prime number … but then we read this Various Types of Numbers which set us straight at categorizing also … even numbers (only 2 … Continue reading →

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Prime Numbers Primer Tutorial

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We’ve been itching to do a “Prime Numbers Primer Tutorial” but haven’t found an interesting enough “in”. But I had occasion to want to count down an hour long period of time the other day, and wondered at the number … Continue reading →

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Javascript Oninvalid Pattern setCustomValidity Event Form Validations Tutorial

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In most of our mathematical educations, the odds are we won’t ever have to prove anything major mathematically, rather we just learn what has already been proved. But a lot of us envisage proving something mathematically as we trot off … Continue reading →

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