Recent content by Fronzbot

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    Engineering  Modeling Optima 300 Brushless DC Motor 2208-1100KV

    This is not homework but I would consider it to fall in this category. I am working on a robotics project and wanted to simulate a PID controller before implementation. I need to find a transfer function for my motor for this to work. Homework Statement As mentioned above, I need to find...
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    Solve MATLAB FFT Help for Unity Rectangular Pulse

    Homework Statement Find the Fourier Transform of a unity amplitude rectangular pulse of width 2T, where T=[ims]. Use MATLAB to plot the magnitude response of this signal's FT. Homework Equations The Attempt at a Solution I got something that LOOKS right, but the first...
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    C/C++ Efficiently Solving Sudoku in C++

    Yeah, I had actually thought about using recursion and may still do so. It's been a few years since I had any formal programming class (an Intro to C class my freshman year of college) so I'd just need to read some stuff to refresh my memory. Seems like the safest route to go. I actually...
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    C/C++ Efficiently Solving Sudoku in C++

    Hey everyone, I'm trying to teach myself C++ and I recalled that a few years ago my Comp Sci major buddy of mine did a sudoku solving program as a project for a class so I decided to tackle it on my own. I'm getting some headway, but I'm having trouble figuring out a way to "brute force"...
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    Cockroft Walton Voltage Multiplier Problems

    Hey everyone. So I like to have electronics projects going on to keep me on my toes during the academic year and my project I chose for fall ended up being a Cockroft Walton Generator. Basically, I was just looking to make a simple negative ion generator from it. I finally got the parts in...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    Yeahh... It's late (3am here) and I have an 8am class not to mention I've been doing other homework on top of this. I'm really sorry that it's tough for me to type correctly, I should've double checked that second one I posted (or, even better, been more clear in my opening post). The last one...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    Yeah, I see that I didn't take that into account. There I'm using x=2 since the line goes from (2,2) down to (2,1) and so x is constant at 2. Why not though? If the triangle has a line going from (1,1) to (2,1); (2,1) to (2,2) and (1,1) to (2,2) which is the hypotenuse, how is the point...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    I re-did part a based on your recommendation (though I didn't see any benefit in parameterizing the curve, am I missing something?) Here's what I got: Integral I worked off of: \int 3x^{2}y^{2}dx - \int x^{3}y^{2}dy Leg 1 (from (1,1) to (2,1)) \int_{1}^{2}3x^{2}dx = 7 Leg 2 (from (1,1) to...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    Yeah, clockwise. And I have limits from 1 to 2 on both (I should've specified that the triangle legs go from (1,1) to (1,2) and (1,1) to (2,1). Sorry 'bout that. Now my integral I have for part b is \int_{1}^{2} \int_{1}^{2} (-3x^{2}y^{2} - 6x^{2}y)dxdy I'm assuming this is incorrect as...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    Yeah, I tried doing everything in Latex but it was giving me errors were there shouldn't have been. It was very odd. As for that 2 and 3 thing- the 2 is a typo. The correct equation is A = ax(3x^2y^2) - ay(x^3y^2), my apologies. In part A- that's what I wasn't sure about. I wasn't sure if I...
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    I done screwed up. Part b the cross product I did was wrong, stupid mistake. It should be the double integral of -3x^2y^2-6x^2y dxdy from 1 to 2 on both integrals which equals -112/3
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    How Does Stokes' Theorem Apply to a Triangular Contour in Vector Calculus?

    Homework Statement Assume the vector function A = ax(3x^{2}2y^{2})-ax(x^{3}y^{2}) a) Find \ointA\cdotdl around the triangular contour shown in Fig. 2-36 [it is a triangle with base and height of one on the x and y axis. the curl travels so that the normal vector is in the -z direction] b)...
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    DIY Insulating Bare Copper Wire | Inductor Building

    Hey guys, I'm working on a little project and I need to build an inductor. Now the problem is I have bare copper wire (like, a ton of it) and was hoping there was a way that I could insulate it so I could use it like typical magnet wire? Is it possible for me to just use a spray-enamel? I...
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    Optimization of C code: smoothing an image.

    Thank you mark, that is very clear! Now if I wanted to define a pointer to, say, the first column of src (assuming the first dimension is a row and the second is a column) would I say something like pixel *pointer = src[][0];? Or would I even have to do that? Could I just use src[][0]? Or...
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