I have an iPad app that lets you draw equations with your finger
Windows 7 and 8 have a "Math Input Panel" in Accessories (actually it may be named slightly differently in Windows 8, I must check at home) in which you can use your mouse to enter the mathematical symbols. And better than a screen shot it handshakes directly into Word. I must check on my newly acquired Surface how it works with a finger input.
These have huge erases; I just got one for my niece since she went through 10 erasers in two weeks on her Kuro Toga. BTW, the Kuro Toga Roulette is the best mechanical pencil; it's metal, and rotates the lead every time you advance. I have the gunmetal version; I only wish Uni would make it in 0.3mm.
Most of the time, I prefer using pens, but I've been using pencils more after I got my Roulette and a Pentel GraphGear 1000. Another intesting option is Pilot's Frixion erasable pens; they actually work well, much better than the PaperMates of the late 1970's.
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used in Orion Spacecraft, part of NASA's Mars mission. Live radio show and live chat. Get your questions ready.
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