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Apr
25
revised Inverse of a “Vandermonde-like” matrix composed of power series
removed inappropriate tag
Apr
25
suggested approved edit on Inverse of a “Vandermonde-like” matrix composed of power series
Apr
24
reviewed Reviewed What means to expand determinant from first column?
Apr
24
comment What means to expand determinant from first column?
Hi @lela. I edited the question title; please check this new title is okay. You should write some context for your question, such as what you have tried and can already do, and what is the problem that you have with this question.
Apr
24
suggested rejected edit on What means to expand determinant from first column?
Apr
24
reviewed Reviewed Is there any flaw in this proof relating derivative and monotonicity?
Apr
5
comment Show, by example, that we can find social welfare functions which satisfy any three of the four Arrow's axioms.
What have you tried and can already do? An example which breaks 2 and keeps the others should not be terribly difficult, for example.
Mar
11
revised Linear Algebra - Real Matrix and Invertibility
removed inappropriate tag
Mar
11
suggested approved edit on Linear Algebra - Real Matrix and Invertibility
Mar
6
revised Find volume by shell method
tags, title
Mar
6
suggested approved edit on Find volume by shell method
Mar
4
reviewed Reviewed What cubic problems did Tartaglia and Fior pose to each other?
Feb
26
comment Inverse problems with Graphical Approximation and Graphs
You should also ask Nuutti. It is a fair guess that he knows far more about this than I do.
Feb
24
answered Inverse problems with Graphical Approximation and Graphs
Feb
19
revised Exploiting symmetry to prove results
explained an unexplained variable
Feb
19
answered Exploiting symmetry to prove results
Feb
18
revised Application of derivatives, proof check.
tag, title, language, presentation
Feb
18
suggested approved edit on Application of derivatives, proof check.
Feb
9
awarded  Yearling
Feb
9
revised Index Notation: Vector Calculus
removed two inapproriate tags