Note: An updated version for Windows 8.1 is available. This patch allows you to use more than 3/4GB of RAM on an x86 Windows system. Works on Vista, 7, 8, has been tested on Windows Vista SP2, Windows 7 SP0, Windows 7 SP1 and Windows 8 SP0. Instructions and source code included. Download: Before using […]
Continue reading →Here is Problem 9-4(b) from Introduction to Topological Manifolds by John M. Lee: Let \(S_1\) and \(S_2\) be disjoint sets, and let \(R_i\) be a subset of the free group \(F(S_i)\) for \(i=1,2\). Prove that \(\langle S_1 \cup S_2 \mid R_1 \cup R_2 \rangle\) is a presentation of the free product group \(\langle S_1 \mid […]
Continue reading →Here is a basic result concerning connected topological spaces. The only subsets of a connected space \(X\) that are both open and closed are \(\emptyset\) and \(X\) itself. Clearly, if \(A\) is a nonempty subset of \(X\) that is both open and closed then \(A=X\). We can derive a useful theorem as a consequence of […]
Continue reading →I recently upgraded my Asus Zenbook UX31E laptop to Windows 8. Here I’ll show you what I did to update my Elantech drivers to get gestures (swipe from left, top, right, bottom) working. As a bonus, I’ll also show you how to get three finger tap = middle click so you can open new browser […]
Continue reading →It is well known that a circle with radius r has diameter 2πr. But is there a similar formula for the circumference of an ellipse?
Continue reading →Today I finally enabled AdSense on processhacker.sourceforge.net with the following (somewhat aggressive) layout: Home page: Downloads page: Mini FAQ Why ads? (1) I want to get some money, and (2) Curiosity. This change should not affect loyal users of Process Hacker at all, because most people come to the website to see what Process Hacker […]
Continue reading →If you’re writing a backup program, you need to be able to read and access files that are in use by other programs. The proper way to do this is to use the Volume Shadow Copy Service. The MSDN pages cover a lot of material that is unnecessary for a simple backup program, so here […]
Continue reading →OK, Visual Studio 2012’s new user interface isn’t that bad. But you need to get some serious work done, and you don’t want to be forced to hover your cursor over each monochrome icon to get a tooltip explaining what it’s for. NOR DO YOU WANT THE MAIN MENUS SHOUTING AT YOU ALL THE TIME. […]
Continue reading →In the final release of Windows 8, the EnumWindows function no longer lists Metro/Modern UI windows: Note For Windows 8 and later, EnumWindows enumerates only top-level windows of desktop apps. This change was made some time around the consumer preview release. I’m not sure why Microsoft did this, but there is a simple workaround. Instead […]
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