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Questions Asked

vf321:
Group Title
What is a priori error? Could you give an example?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

vf321:
Group Title
For a given triangle ABC, where \(h_X\) stands for altitude from a vertex \(X\), is \(h_b+h_c>b\) for all \(b\)?
 updated one year ago
 2 replies
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Mathematics

vf321:
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Can the sum of any two altitudes of a triangle be smaller than one of its legs?
 updated one year ago
 5 replies
 1 Medal
Mathematics

vf321:
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Does anyone know how to approach secondorder negative feedback systems? Could you give an example please?
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

vf321:
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(DE) Can you construct a secondorder negative feedback loop example?
 updated one year ago
 12 replies
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Mathematics

vf321:
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Is space curvature relative to the frame of reference? If I have an object that is of some length \(l\) moving at a relativistic velocity …
 updated one year ago
 1 reply
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Mathematics

vf321:
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Is \((AB)^{1}=A^{1}B^{1}\) for square matrices A and B?
 updated one year ago
 7 replies
 2 Medals
Mathematics

vf321:
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Why is \(\Delta q = \lambda\)? Let's say I'm measuring an electron's position with light. I agree that \(\Delta p = h/\lambda\), where \(\…
 updated one year ago
 1 reply
 2 Medals
Mathematics

vf321:
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Define the region \(\Sigma\subset\mathbb{R^2}\) as a system of inequalities for \((x, y)\). \(\Sigma\) is the intersection between the two r…
 updated one year ago
 30 replies
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Mathematics

vf321:
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Can I simplify \(\arcsin(c_1\sin\Phi)\)?
 updated one year ago
 1 reply
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Mathematics

vf321:
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I was working on an MVC problem but forgot my trig: \(\sin(\pix) = ?\). It's like negative cosine or something, right?
 updated one year ago
 7 replies
 1 Medal
Mathematics

vf321:
Group Title
Is information (in classical physics) transferred at light speed? Or is it assumed to be instantaneous? What is actually going on in exampl…
 updated one year ago
 30 replies
 1 Medal
Mathematics

vf321:
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Is the vector cross product only defined for 3D? Wikipedia formally introduces it as, for vectors \(\vec a\) and \(\vec b\),\[\vec a\times …
 updated one year ago
 15 replies
 2 Medals
Mathematics

vf321:
Group Title
How do I make inline Latex code in OpenStudy?
 updated one year ago
 8 replies
 2 Medals
Mathematics

vf321:
Group Title
Is the following DE solvable?
For constants m1, m2, and G, find the position vectors r1 and r2 as functions of time. We know:
\[m_1\frac{…
 updated one year ago
 4 replies
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Mathematics

vf321:
Group Title
Can a realvalued function f(x, k) which has domain x: Reals and k: Positive integers and 0 have the following property?\[\lim_{n\rightarrow…
 updated one year ago
 7 replies
 1 Medal
Mathematics

vf321:
Group Title
Why does 11/3+1/51/7... converge to Pi/4? In Latex,
\[\sum_{k=0}^{\infty}\frac{(1)^k}{2k+1}=\frac{\pi}{4}\]
Don't give me a copy/paste o…
 updated one year ago
 17 replies
 5 Medals
Mathematics

vf321:
Group Title
With the initial conditions for a two mass system m1 and m2, where neither mass is significantly larger than the other, the resulting DE is …
 updated one year ago
 35 replies
 1 Medal
Mathematics

vf321:
Group Title
Hello, I have a "graphical" problem. Let's say you have two points, 1 and 2, with some initial position. Let's make the initial position v…
 updated 2 years ago
 35 replies
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Mathematics