windsylph
Name:
Mark Poscablo
School:
About:
Saved not by works, but by grace through faith in Christ Jesus.
http://goodpersontest.com
--
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 Answered
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 yesterday
30 replies
2 Medals
Mathematics
windsylph:
Group Title
Calculus: Evaluate lim x->0.5- (2x-1)/abs(2x^3 - x^2)
updated 7 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 15 days ago
25 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 6 months ago
2 replies
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 6 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 6 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
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
katlin95:
Group Title
who departed spain with a crew of 250 men and was killed in the philippines?
A. christopher colubus
…
updated one year ago
5 replies
1 Medal
Mathematics
happyg:
Group Title
solve for graphing
y-2x-6=0
1/2y-3=x
updated one year ago
2 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
lin.ivory:
Group Title
Probability question!!
In a survey of 287 college students, it is found that 61 like brussels sprouts, 93 like broccoli, 56 like caulifl…
updated one year ago
17 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
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
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
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
7 replies
1 Medal
Mathematics
windsylph:
Group Title
Signals and Systems: Graph Transformations: Suppose a signal x(t) looks like this: https://dl.dropbox.com/u/17638088/Capture.PNG. What does …
updated 2 years ago
3 replies
No Medals Yet
Mathematics
windsylph:
Group Title
Discrete Math: Formal Languages: Suppose that A is a subset of V*, where V is an alphabet. Prove that if A = A^2, then the empty string is i…
updated 2 years ago
4 replies
No Medals Yet
Mathematics
windsylph:
Group Title
If A is a subset of C and B is also a subset of C, then is A union B a subset of C also (subset, not a proper subset)? Intuitively, I'd say …
updated 2 years ago
5 replies
1 Medal
Mathematics
windsylph:
Group Title
LaTeX: Is there a macro for the curly inequality (like the ones used to represent partial orders)?
updated 2 years ago
3 replies
1 Medal
Mathematics
windsylph:
Group Title
LaTeX: Is there a macro for the curly inequality (like the ones used to represent partial orders)?
updated 2 years ago
47 replies
2 Medals
Mathematics
elica85:
Group Title
can anyone help with mechanics of materials?
updated 2 years ago
25 replies
1 Medal
Mathematics
windsylph:
Group Title
Let S be the set of all people in the world, a and b be people in S, and R be the relation given in each item below. Is (S,R) a partially or…
updated 2 years ago
22 replies
2 Medals
Mathematics
windsylph:
Group Title
Prove that if an ordered pair of ordered pairs ((a,b),(c,d)) has the property ad=bc, then this property is transitive, i.e. if another order…
updated 2 years ago
11 replies
1 Medal
Mathematics
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