Two very simple operations that you may have to deal with if writing a JavaScript that deals with trigonometry are Math.degrees() and Math.radians(). These function can be easily defined as follows: The name of these functions indicates the end result. Using the above definitions, you could run code such as Read more…
One of the things that bothers me about the native rounding functions is the fact that there is no way to specify precision. If this is something that you need to do you can use the following code to define Math.$round(...), Math.$ceil(...), and Math.$floor(...): This code Makes the following functions Read more…
I am currently working on a totally new layout and was recently trying to ensure that if the minified version of a JS file existed on my site, it would be used instead of the normal version. Thusly, I decided to use Apache’s .htaccess file to create a rewrite rule Read more…
Recently someone tested my knowledge of JavaScript and asked me what types of native data structures exist which can contain an arbitrary amount of data. My answer was that Arrays and Objects can both do this right out of the box. He said that I was mostly correct, but that Read more…
This post gives the answer to last week’s Problem of the Week. First of all, I have to admit that this problem actually came from the Quicker Maths blog. This blog actually pulled the problem from IBM’s Ponder this section. First of all, in order to write the equation algebraicly, Read more…
Did you know that 882 + 332 = 8833? How about the fact that 9902 + 1002 = 990100? That is pretty interesting, huh? My question for you all is, are there any two 4-digit numbers with this same relationship? In other words, are there two 4-digit numbers which when Read more…
If you remember the problem, the key is the fact that the problem never said to choose one of the answers from the multiple choice list. Also, the question never said that that question was the one that applied to the multiple choice questions. Having those two facts in mind, Read more…
Have you ever had a column text for which you wish you could easily create links? For example, let’s say that you have a column of search words (or phrases) that should link to the Google page for each search. How would you do it? First of all, you would Read more…
This Problem of the Week will make you question whether or not multiple choice questions really are easier. Here is the question: Assuming the answer can be selected from the following list, if you were to choose one of the following at random, what is the chance that you would Read more…
One of the things that you often have to learn early on in school after multiplication and division is how to find the GCD (Greatest Common Divisor) of two numbers. It is possible that you know the GCD as the GCF (Greatest Common Factor) or the HCF (Higest Common Factor). Read more…