Gavran's latest activity
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GGavran replied to the thread Geometric Game: Fun With Matches (Safe!).Agree with the above. “Find x where x2=4” versus “Find x where x2=4 and x>0"; two different problems with two different sets of...
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GGavran reacted to DaveC426913's post in the thread Geometric Game: Fun With Matches (Safe!) with
Informative.
There's the crux, isn't it? So, the puzzle is less "can you find a solution" and more "can you find the solution I intended" It's like... -
GGavran reacted to bob012345's post in the thread Geometric Game: Fun With Matches (Safe!) with
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That’s adds to the class of figures in post #15 which I first considered. An interesting question is how many of these types of figures... -
GGavran replied to the thread Geometric Game: Fun With Matches (Safe!).One more solution with three congruent equilateral triangles.
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GGavran reacted to Math100's post in the thread Is this the correct general solution of the given PDE? with Like.
Thank you very much for the sources and help!
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GGavran reacted to nomadreid's post in the thread Undergrad 2 interpretations of bra-ket expression: equal, & isomorphic, but... with Like.
Huge thanks for the replies, Gavran. (The delay in my response was due to my not getting the usual email notification of a reply.)...
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GGavran replied to the thread Is this the correct general solution of the given PDE?.https://en.wikipedia.org/wiki/Linear_differential_equation#Homogeneous_equation_with_constant_coefficients...
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GGavran reacted to Math100's post in the thread Is this the correct general solution of the given PDE? with Like.
By checking/verifying/confirming my final answer/solution for ## u(x, y)=[A(y)+B(y)\cdot x]e^{-3x} ##, I've obtained ## u_{x}(x...
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GGavran replied to the thread Is this the correct general solution of the given PDE?.Your method and your result in the original post are correct because every partial differential equation that only involves derivatives...
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GGavran replied to the thread Undergrad 2 interpretations of bra-ket expression: equal, & isomorphic, but....Dual vector spaces make analyzing and understanding vector spaces with no inner products more clear. Let us consider the set of real...
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GMy condolences to the family. Could we at least have a picture of him during his happy days? That is the only way his memory can live on...
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GGavran replied to the thread Definite integral involving rational function and 𝜋.Two techniques should be applied in this case. The first one is the substitution as proposed in post #2, and the second one is the...
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GGavran reacted to martinbn's post in the thread Definite integral involving rational function and 𝜋 with Informative.
##u=x^2+\pi +1##
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GGavran reacted to PeroK's post in the thread How do I derive an expression for the velocity vector for any α? with Like.
The question is a bit odd. Presumably, the bar does not get lifted off the surface, so that we have an assumed constraint of motion in...
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GGavran replied to the thread Undergrad 2 interpretations of bra-ket expression: equal, & isomorphic, but....Dealing with a dual vector space lacks bilinearity. It is more natural to use an inner product when we want to define lengths...
