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- 18:06, 15 October 2008 (diff | hist) . . (+35) . . N DT Fourier Transform Pair 3 ECE301Fall2008mboutin (New page: <math>x[n]=sin[\omega n]u[n]</math>)
- 18:04, 15 October 2008 (diff | hist) . . (+88) . . Table of Formulas and Properties ECE301Fall2008mboutin (→DT Fourier Transform Pairs)
- 17:52, 15 October 2008 (diff | hist) . . (+764) . . N HW6.3 Daniel Morris ECE301Fall2008mboutin (New page: ==Problem 4== 4. Compute the coefficients <math>a_k</math> of the Fourier series of the signal x(t) periodic with period T=4 defined by x(t)= <math>0, -2< t< -1</math> <math>...) (current)
- 16:33, 15 October 2008 (diff | hist) . . (+48) . . Homework 6 ECE301Fall2008mboutin (→Test Answers/Corrections)
- 16:13, 7 October 2008 (diff | hist) . . (+242) . . N HW5.4 Daniel Morris ECE301Fall2008mboutin (New page: I often confuse how continuous time and discrete time differ. For example, on the last test there was h[n]=u[n]-u[n-2]. Also, I am confused about what is needed to define a Fourier series...) (current)
- 15:44, 7 October 2008 (diff | hist) . . (+721) . . N HW5.3 Daniel Morris ECE301Fall2008mboutin (New page: ==Inverse Fourier Transforms== If we have a Fourier series <math>X(\omega)</math>, then <math>x(t)=\frac{1}{2\pi}\int_{-\infty}^{\infty}X(\omega)e^{j\omega t}d\omega</math> ==Example== <...)
- 13:58, 7 October 2008 (diff | hist) . . (0) . . HW5.2 Daniel Morris ECE301Fall2008mboutin
- 13:58, 7 October 2008 (diff | hist) . . (+1,177) . . N HW5.2 Daniel Morris ECE301Fall2008mboutin (New page: ==Fourier Transformations== The Fourier transformation of the signal x(t) is defined as <math>X(\omega)=\int_{-\infty}^{\infty} x(t) e^{-j\omega t}dt</math> ==Example== <math>x(t)=e^{-...)
- 13:13, 7 October 2008 (diff | hist) . . (0) . . Homework 5 ECE301Fall2008mboutin
- 13:13, 7 October 2008 (diff | hist) . . (+144) . . Homework 5 ECE301Fall2008mboutin
- 15:21, 26 September 2008 (diff | hist) . . (+2,321) . . N HW4.5 Daniel Morris ECE301Fall2008mboutin (New page: ==Problem== Suppose a DT signal satisfies the following properties: 1)x[n] is periodic with period 12. 2)<math>\sum_{k=0}^{11}x[n]=24</math> 3)<math>\sum_{k=5}^{16}(-1)^nx[n]=6</math> ...) (current)
- 18:44, 25 September 2008 (diff | hist) . . (+1,089) . . N HW4.3 Daniel Morris ECE301Fall2008mboutin (New page: ==Part A== Define <math>y(t)=\int_{-\infty}^{\infty}\frac{1}{2}x(t)dt</math>. h(t) is the system response of <math>x(t)=\delta (t)</math>. <math>h(t)=\int_{-\infty}^{\infty}\frac{1}{2}\d...) (current)
- 18:22, 25 September 2008 (diff | hist) . . (0) . . HW4.1 Daniel Morris ECE301Fall2008mboutin (→Finding The Fourier Series Coefficients)
- 18:22, 25 September 2008 (diff | hist) . . (+36) . . HW4.1 Daniel Morris ECE301Fall2008mboutin (→Finding The Fourier Series Coefficients)
- 08:57, 25 September 2008 (diff | hist) . . (+1,473) . . HW4.1 Daniel Morris ECE301Fall2008mboutin
- 07:57, 25 September 2008 (diff | hist) . . (+91) . . N HW4.1 Daniel Morris ECE301Fall2008mboutin (New page: ==CT Signal== Choose the CT signal to be <math>x(t)=\frac(1 j)cos(4\pit)+5sin(5\pit)</math>)
- 07:53, 25 September 2008 (diff | hist) . . (+144) . . Homework 4 ECE301Fall2008mboutin
- 21:19, 24 September 2008 (diff | hist) . . (+1) . . Supplementary Question 1 MA453Fall2008walther
- 21:19, 24 September 2008 (diff | hist) . . (+130) . . Supplementary Question 1 MA453Fall2008walther
- 19:18, 24 September 2008 (diff | hist) . . (+37) . . N Chapter 6, Problem 35 MA453Fall2008walther (New page: Any body have any ideas???? I'm lost.)
- 19:17, 24 September 2008 (diff | hist) . . (+709) . . Supplementary Question 1 MA453Fall2008walther
- 18:46, 24 September 2008 (diff | hist) . . (+271) . . N Chapter 6, Problem 7 MA453Fall2008walther (New page: For two groups to be isomorphic, there has to be a one-to-one mapping. This is impossible for <math>S_4</math> and <math>D_{12}</math> because <math>D_{12}</math> has an order of 12, and <...)
- 19:12, 18 September 2008 (diff | hist) . . (+225) . . N Talk:HW3.A Hang Zhang ECE301Fall2008mboutin (New page: This explanation is, in my opinion, minimal, but correct. My suggestion would be to explain the definition with examples in addition to your definition, so people can visualize what you ar...) (current)
- 19:09, 18 September 2008 (diff | hist) . . (+19) . . Talk:HW3.A Jonathan Morales - Stability ECE301Fall2008mboutin
- 19:09, 18 September 2008 (diff | hist) . . (+192) . . N Talk:HW3.A Jonathan Morales - Stability ECE301Fall2008mboutin (New page: This is a good, correct answer. It shows through math what it means to be stable or unstable. The only thing that I have a problem with is that I would not consider this to be "Formal" eno...)
- 19:05, 18 September 2008 (diff | hist) . . (+20) . . Talk:HW3.A Mark Frankosky ECE301Fall2008mboutin
- 19:04, 18 September 2008 (diff | hist) . . (+18) . . Talk:HW3.B Adam Forkner ECE301Fall2008mboutin (current)
- 19:03, 18 September 2008 (diff | hist) . . (+143) . . N Talk:HW3.A Mark Frankosky ECE301Fall2008mboutin (New page: This definition makes sense and is correct. I would not have put two if statements in the definition for an unstable system. you only need one.)
- 18:59, 18 September 2008 (diff | hist) . . (+714) . . HW3.A Daniel Morris ECE301Fall2008mboutin (current)
- 18:47, 18 September 2008 (diff | hist) . . (-1) . . HW3.A Daniel Morris ECE301Fall2008mboutin (→Time Invariance)
- 18:47, 18 September 2008 (diff | hist) . . (+9) . . HW3.A Daniel Morris ECE301Fall2008mboutin (→Time Invariance)
- 18:46, 18 September 2008 (diff | hist) . . (+208) . . HW3.A Daniel Morris ECE301Fall2008mboutin
- 18:23, 18 September 2008 (diff | hist) . . (+179) . . N HW3.A Daniel Morris ECE301Fall2008mboutin (New page: ==Time Invariance== A system is called "'''time invariant'''" if for any input signal x(t) in continuous time or x[n] in discrete time and for any time <math>t_0\contain\Re</math>)
- 17:52, 18 September 2008 (diff | hist) . . (+134) . . HW3.C Daniel Morris ECE301Fall2008mboutin (current)
- 17:51, 18 September 2008 (diff | hist) . . (0) . . HW3.C Daniel Morris ECE301Fall2008mboutin (→Part 3)
- 17:50, 18 September 2008 (diff | hist) . . (0) . . HW3.C Daniel Morris ECE301Fall2008mboutin
- 17:49, 18 September 2008 (diff | hist) . . (+924) . . N HW3.C Daniel Morris ECE301Fall2008mboutin (New page: ==Part 1== Bob can decrypt the message by using the inverse of the secret matrix. Multiplying the encrypted vector three at a time by the inverse matrix will yield the original vector. ==...)
- 17:16, 18 September 2008 (diff | hist) . . (+159) . . N Talk:HW3.B Adam Forkner ECE301Fall2008mboutin (New page: The answer was correct. The explanation could be more clear and by that, I mean complete sentences. I had to read through it twice because it all ran together.)
- 11:05, 18 September 2008 (diff | hist) . . (+9) . . HW3.B Daniel Morris ECE301Fall2008mboutin (current)
- 11:04, 18 September 2008 (diff | hist) . . (-157) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 11:02, 18 September 2008 (diff | hist) . . (-10) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 11:00, 18 September 2008 (diff | hist) . . (-12) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 11:00, 18 September 2008 (diff | hist) . . (+1) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 10:58, 18 September 2008 (diff | hist) . . (+10) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 10:55, 18 September 2008 (diff | hist) . . (+2) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 10:53, 18 September 2008 (diff | hist) . . (+2) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 10:51, 18 September 2008 (diff | hist) . . (+1) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 10:50, 18 September 2008 (diff | hist) . . (0) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 08:34, 18 September 2008 (diff | hist) . . (+859) . . HW3.B Daniel Morris ECE301Fall2008mboutin
- 08:12, 18 September 2008 (diff | hist) . . (+276) . . N HW3.B Daniel Morris ECE301Fall2008mboutin (New page: since <math>x(t)=e^{2jt}</math> yields <math>y(t)=te^{-2jt}</math> and <math>x(t)=e^{-2jt}</math> yields <math>x(t)=te^{2jt}</math>, it is easy to see that x(t) yields y(t)=t*x(-t). Based...)
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