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
Harrison Loke of the Finandom blog recently wrote about some simple formulas that you can use to decide if refinancing a loan makes sense for you. We here at Political Calculations are always on the lookout for interesting math that we can turn into tools, so we've chosen to take on some of Harrison's formulas as our latest project!
First up, how long will it take for you break-even on the refinancing charges that you will have to pay? The following formula may be used to provide the answer:
The formula above may be used to find the number of months that it will take to at least cover the cost of refinancing. But, the formula makes two assumptions that may or may not be true in your case:
What if you went from a monthly to a biweekly payment period? Or vice versa? Or making payments at some other interval? The tool below takes the most common payment intervals into account in determining the number of months it will take to break-even after refinancing your loan:
For the tool above, a negative result indicates that you will not at least recover the costs of refinancing.
The amount of time that it takes to make back the amount of money it cost to refinance your loan is an important factor to consider if you may be retiring the loan in the near future. In the case of a mortgage, for example, if you will be selling your home and moving before breaking even on refinancing - or in the case of a car loan, if you will be trading it in for a newer model.
Labels: debt management, tool
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:
The S&P 500 at Your Fingertips
Mapping S&P 500 Performance, Since 1871
Should You Trade In Your Gas Guzzler?
What Are the Chances Your Marriage Will Last?
Reckoning the Odds of Recession
Your 2009 Paycheck
Tipping Around the World
Revisiting the Lottery
Estimating Your Life Expectancy
Connecting the Dots for Personal Income Taxes
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On the Moneyed Midways
A Lot, But Not All, of Our Tools
Political Calculations' Recession Probability Track shows the probability that the U.S. economy will be in recession 12 months from the indicated date (shown in red) while revealing the probability trend over the past four years.
Previously, the probability of recession peaked at 50% on 4 April 2007, which means that March-April 2008 was the most likely period in which the NBER would have found the U.S. to be in recession.
As it happens, they almost did. The NBER instead chose December 2007 as the beginning month of the most recent recession (we had found a 46% probability for a recession beginning in that month!)
Political Calculations is also the online home of On the Moneyed Midways (aka OMM), a review of the best posts contributed to the week's best business and money-related blog carnivals. More than that, we also name one post in each edition as being The Best Post of the Week, Anywhere! and at the end of each year, we name The Best Post of the Year, Anywhere! as well as identifying the best blogs we found during the course of the year!
The link below will take you to the running index containing our most recent back issues (you can easily navigate the index to find older editions.)
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Visitors since December 6, 2004:
The tools on this site are built using JavaScript. If you would like to learn more, one of the best free resources on the web is available at W3Schools.com.
ZunZun - Exceptional regression analysis tool.
Wolfram Integrator - Solve integrals. Do calculus!
Create a Graph - Easy-to-use basic graph-making tool.
Many Eyes - Data visualization extraordinaire!