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11h
comment Linear Algebra and Upper triangular matrix
Hi, welcome to Math.SE! Consider revising your question so we understand what it is you are asking for, or perhaps providing some examples.
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comment Best methods for solving ODE with series
@Quality the idea is to end up with exactly the same powers of x in each sum, i.e. $\sum ... x^n$
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comment Best methods for solving ODE with series
@Quality all sums should index from 0
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awarded  Enlightened
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answered Find the values of $a,b,c$ of the complex function $f(x)= (ax+b)/(x+c)$
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revised Find the values of $a,b,c$ of the complex function $f(x)= (ax+b)/(x+c)$
LaTeX
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answered Best methods for solving ODE with series
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comment Way to compare three numbers with an algorithm.
@Frxstrem of course, another typo from multiple revisions, fixed now, thanks
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revised Way to compare three numbers with an algorithm.
deleted 2 characters in body
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awarded  Nice Answer
2d
comment find the derivative of the integral
@CodyJohnson he likely meant to integrate dy, otherwise the problem makes no sense...
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answered find the derivative of the integral
2d
answered Can a graph with no cut edges contain a cut vertex
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comment Can a graph with no cut edges contain a cut vertex
what are your thoughts on the problem? can you write down definitions of cut vertex and cut edge and think what happens in a graph without cut edges?
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answered Determine a closed form for this sequence
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comment Direct Proof on Divisibilty
@user3321427 direct argument would be like "this has a factor of 2, hence it must be even" -- another similar one to argue it is divisible by 4
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reviewed Approve Watts-Strogatz graphs
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answered Direct Proof on Divisibilty
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comment help with showing a series is divergent
@AndréNicolas you mean $\ln n > 1$ for $n >e$?
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comment Generating function - the number of ways to distribute 100 dollars to n people.
@BrianTung of course, fixed