to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
For Black Friday 2018, we updated our tool that uses math to help thrifty shoppers set individual spending limits for each the gifts that they might give to the people they know this holiday season.
If you used the tool, you're very likely the kind of person who likes maths enough to use them to solve everyday problems. What's more, the odds are that you know somebody else who shares that mathematical affinity.
So why not give them the biggest ideas in math, the stories of breakthrough insights and the inspirations behind them, as assembled by the editors and staff of Quanta Magazine, in The Prime Number Conspiracy. Here's Quanta's understated promotional video for the book:
If that's not your friend's cup of tea, you might consider going in a different direction. If you ever wondered, as we did, if self-driving cars can solve traffic jams or if we know all the things they can or should be distracted by, or whether such a vehicle could be taken over by a hacker, we have another suggestion that seems very well suited for our ever-more artificially intelligent system modeled world: Hannah Fry's Hello World: Being Human in the Age of Algorithms, which explores the ethical dilemmas that come part and parcel with society's growing use of computer technologies.
Finally, if you're looking for something lighter, why not a book by a mathematician who has also established themselves as a stand up comedian?
Matt Parker covers some of the territory contained within our other two suggestions, but takes things to the n+1 level in Things to Make and Do in the Fourth Dimension.
In it, he shares the lessons of advanced maths that makes it possible keep all the cords from your earbuds from getting tangled, or how to make a paper flexagons, and also the most mathematically optimal way to find a suitable mate, which would be an added selling point if they're still single.
At the very least, that math is a lot easier to solve than the formula for explaining why they're still single....
Welcome to the blogosphere's toolchest! Here, unlike other blogs dedicated to analyzing current events, we create easy-to-use, simple tools to do the math related to them so you can get in on the action too! If you would like to learn more about these tools, or if you would like to contribute ideas to develop for this blog, please e-mail us at:
ironman at politicalcalculations
Thanks in advance!
Closing values for previous trading day.
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