Portal 2 sets a great standard for tutorials - it's funny and quick, and the patronizing nature of telling the player how to progress is explained in the narrative. Games have a lot of standard ...

I have always believed in optimizing my workflow, but my mastery and knowledge of Microsoft Excel remained stuck in the basics. I knew there were advanced tricks out there, but they always felt ...

As the speed of DSP's and digital hardware keeps increasing, software and digital hardware are replacing traditional analog hardware, making today's gizmos and gadgets smarter, more reliable, less ...

Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...