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Feb
11
answered Brackets around each item in matrix
Feb
11
revised Brackets around each item in matrix
edited tags
Feb
11
revised sum involving binomial coefficient
added 30 characters in body
Feb
11
revised How to Minimize an NIntegral
edited tags
Feb
11
revised Is it possible to recover the efficiency of ListConvolve when generalizing the convolution?
edited tags
Feb
11
revised Reaction-diffusion PDE with NDSolve: either very slow or very inaccurate
edited tags
Feb
11
comment Issue with replacement rules screwing up a matrix
That should probably be Inverse[A].f, but in practice, LinearSolve[A, f] is the preferred route.
Feb
11
comment NDSolve: Indeterminate expression 0. ComplexInfinity encountered?
…and without context of any sort, why should other people be interested in this?
Feb
11
comment Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?
@Vadim, my second comment hints on how to show this, you see… ;)
Feb
11
revised Plotting a function based on complicated integral
edited tags
Feb
11
comment Reproduce image effect in Mathematica
Have you seen this?
Feb
11
revised UnitaryMatrixQ function not returning true for a unitary matrix
edited tags
Feb
11
revised Off[FinancialData::notent] fails on first run but works thereafter
edited tags
Feb
11
revised Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?
added 3 characters in body
Feb
11
comment Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?
(Although, making the substitution $x=u^2$ does reveal the trouble.)
Feb
11
comment Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?
Do not use the bugs tag until your observation has been verified to be a bug. Also, please include your version number and OS. Finally, there's no question here that I see; SE is supposed to be used for asking questions.
Feb
11
revised Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?
edited tags; edited tags
Feb
11
revised Definite integral evaluation
edited tags
Feb
11
revised What are some useful, undocumented Mathematica functions?
added 14 characters in body
Feb
11
answered How can I get the solutions of $x^n-x-t=0$ in hypergeometric form?