windsylph
Name:
Mark Poscablo
School:
About:
Saved not by works, but by grace through faith in Christ Jesus.
http://goodpersontest.com
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I'm that person you see prancing around, just because power walking won't cut it.
.
..
...
Haha, just kidding. I power walk. Around the grounds of Wesleyan Academy. Straight through Village East Ave. Passing by Gateway. Who knows, maybe I'd even end up at 12525 Jones Rd.
Oh, how in the world..
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Questions Asked
windsylph:
Group Title
Linear Algebra and Modular Math: We know that if a matrix A is n x n, then Ax = b (x and b are vectors) has a unique solution iff A is inver…
updated 7 days ago
30 replies
2 Medals
Mathematics
windsylph:
Group Title
Calculus: Evaluate lim x->0.5- (2x-1)/abs(2x^3 - x^2)
updated 13 days ago
9 replies
1 Medal
Mathematics
windsylph:
Group Title
Calculus: Evaluate lim as x->1 of (1- (1/x))/(1-(1/sqrt(x)))
updated 21 days ago
25 replies
1 Medal
Mathematics
windsylph:
Group Title
Trigonometry: Find all solutions of sin(2x) = -sqrt(3)/2 on [0, 2pi)
I could easily get 2pi/3 and 5pi/6 from the unit circle, but how do …
updated one month ago
3 replies
1 Medal
Mathematics
windsylph:
Group Title
Algebra: Is it possible to solve this for x purely by hand? Please provide the solution if so:
17/(2x-2) = 2/(x-1) + (x+4)/4
updated one month ago
2 replies
1 Medal
Mathematics
windsylph:
Group Title
Calculus and Parametric Equations: An object is moving along a curve in the xy-plane has position (x(t), y(t)) at time t with dx/dt = 2sin(t…
updated 6 months ago
19 replies
1 Medal
Mathematics
windsylph:
Group Title
Fourier Transform: Find the Fourier Transform of f(t) = {1, -1 <= t <= 2; 0, otherwise}. (Please verify the solution I posted in the comment…
updated 7 months ago
2 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Fourier Transform: If I want to get the Fourier Transform of f((1/3)(t+1)) through using its properties, do I apply the time scaling propert…
updated 7 months ago
No Medals Yet
Mathematics
windsylph:
Group Title
Fourier Transform: Find the Fourier Transform (FT) of e^(-3|t-3|) using the FT of e^-|t| and the FT properties.
updated 7 months ago
1 reply
No Medals Yet
Mathematics
windsylph:
Group Title
Fourier Series: Expand the function f(x) = x^2 in a Fourier sine series on the interval 0 <= x <= 1.
Is it correct to say that the expans…
updated 7 months ago
4 replies
1 Medal
Mathematics
windsylph:
Group Title
Linear Algebra: Please explain what happened between the first and second steps?
Let a be a scalar. Let x, y, and z be vectors.
…
updated 7 months ago
4 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Electrical Engineering: Microelectronics: Assuming a MOSFET circuit is operating in the saturation/active region, if gm = 3.2 mA/V at ID = 1…
updated one year ago
1 reply
No Medals Yet
Mathematics
windsylph:
Group Title
Probability and Statistics: Let X and Y be independent exponential distributions with common parameter lambda. Let Z = min(X,Y)/max(X,Y). Fi…
updated one year ago
1 reply
No Medals Yet
Mathematics
windsylph:
Group Title
Graphically compute the convolution of a square pulse with itself, where a square pulse is defined as {1 if 0<=x<=1, 0 otherwise}.
updated one year ago
10 replies
1 Medal
Mathematics
windsylph:
Group Title
How would you explain asymptotic complexity in simple terms? For example, if you were to explain to a non-technical person that an algorithm…
updated one year ago
7 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Probability and Statistics: Gaussian Distribution: Suppose that a certain sample space of numbers can be modeled by a Gaussian distribution …
updated one year ago
8 replies
1 Medal
Mathematics
windsylph:
Group Title
Probability and Statistics: Let X and Y be independent random variables, and E(A) be the expectation of any random variable A. Simplify this…
updated one year ago
5 replies
2 Medals
Mathematics
windsylph:
Group Title
Prob/Stat: Let X, Y, and Z be discrete random variables, and let Z = f(X,Y) = X+Y. Is the "distribution of Z" the same as the PMF of Z?
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Probability: What is the probability that a fair coin lands as heads for the first time on the kth toss?
updated one year ago
29 replies
3 Medals
Mathematics
windsylph:
Group Title
Electronics: Find the gain v_o/v_Id in the circuit attached: https://dl.dropbox.com/u/17638088/2-70.PNG
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Electronics: Find the value of the resistor for a simple RC low pass filter whose corner frequency is 3.3 kHz and C = 47 nF
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Complex Functions: What is the magnitude of 1+ix?
updated one year ago
4 replies
1 Medal
Mathematics
windsylph:
Group Title
Probability: Joe is a fool with probability 0.6, a thief with probability 0.7, and neither with probability 0.25. Determine the probability …
updated one year ago
8 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Fourier Transforms: Compute the Fourier transform of e^(-3|t|) sin(2t).
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Discrete Math/Data Structures: Prove that there is a unique (2,4) tree associated with a given red-black tree.
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Prove that there is a unique (2,4) tree associated with a given red-black tree.
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Signals and Systems: How do you find the frequency response of h[n] = (1/2)^|n| ? I need it for discrete-time Fourier Series.
updated one year ago
No Medals Yet
Mathematics
windsylph:
Group Title
Recurrence Relations: Can you use generating functions to solve the recurrence relation T(n) = 2T(n-1) + n ?
updated one year ago
2 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Derivative of ((-1/6)e^(-3t)+(1/6))*u(t), where u(t) is the unit step function? #signals and systems
updated one year ago
5 replies
1 Medal
Mathematics
windsylph:
Group Title
Signals and Systems: Causality: Can someone please explain how y(t) = ((t-1)^3)x(t/2) is a causal system? I see no way how y(t) uses future …
updated one year ago
No Medals Yet
Mathematics
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