Recent content by idris

micro programming knowledge is pretty transferable, so starting on pic or atmel mc's is much of a muchness. basically, pick up a couple of mc's, a development board (the arduino is good and, if you build it yourself, cheap), and some basic components. build a 5V power supply (you'll just need a...

I thought that for very small values of sin or arcsin, sin(x) roughly = x? So that if you take the limit as x->0, it will never be 0, but just the input? This is hard to explain - the function doesn't "get closer" to anything as it approaches 0, it just oscillates around the value inputted - so...

Hey guys, have a questions about L'Hopital and arcsin. The question is to find the limit of (arcsin(2x))/x^3 as x->0. I can find the limit no problem just by applying L'Hopital, but I am having difficulty proving that it's valid to use L'Hopital with the function, because with f(x)=arcsin(2x)...