Tag Archives: HTML

PHP/Javascript/HTML Moon Angle Tutorial

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Here is a tutorial that calculates Noon Moon Angles from Earth via the entry of Latitude and Longitude. The calculation of noon moon angles uses the concept of Sublunary Point, which is explained in the quote from Wikipedia below. The … Continue reading →

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HTML/Javascript Quadratic Equations Tutorial

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Here is a tutorial showing some client-side basics in HTML and Javascript that can verify your calculation of the roots of a quadratic equation. The inspiration for this came from the tutorial here. Sometimes a graphical representation of the Quadratic … Continue reading →

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PHP/Javascript/HTML Sun Angle Tutorial

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Here is a tutorial that calculates Noon Sun Angles on Earth via the entry of Latitude and Longitude. The calculation of noon sun angles uses the concept of Subsolar Point, which is explained in the quote from Wikipedia below. The … Continue reading →

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PHP/Javascript/HTML Great Circle Distance Tutorial

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Here is a tutorial that calculates Great Circle Distances on Earth via the entry of Latitude and Longitude. The calculations are not true geodesic calculations and so, we will show the result to the nearest metre. We assume the radius … Continue reading →

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HTML/Javascript Number Sentence Tutorial

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Here is a tutorial showing some client-side basics in HTML and Javascript that can test some fairly simple mathematical Number Sentences for the user. The inspiration for this came from some homework of a student. This HTML/Javascript solution uses an … Continue reading →

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HTML/Javascript Simultaneous Line Equations Tutorial

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Here is a tutorial showing some client-side basics in HTML and Javascript that can solve a pair of Simultaneous Linear Equations. The inspiration for this came from the tutorial here. Sometimes a graphical representation of the Line Equations can help … Continue reading →

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PHP/Javascript/HTML Public JSON ICC Usage Tutorial

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Here is a tutorial that introduces you to the idea that you can use public data sources of JSON data, for instance, to construct informational web applications. Today we look at International Calling Code information useful when making international phone … Continue reading →

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Javascript Debug via Firefox and Firebug Primer Tutorial

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Today’s tutorial (live run) shows some debugging techniques for Javascript work that involved the use of Firefox and its wonderful Firebug plugin (instigated via Firefox menu Tools->Web Developer->Firebug->Open Firebug), and builds on your knowledge from previous relevant Firefox and Favourite … Continue reading →

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