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Apr
29
comment Minimum and maximum with lagrange multiplier
ok @JeanMarie others have already pointed out that. I think that this doesn't answer my theoretical question: in general can I replace nn constraints with their intersection?
Apr
27
comment Minimum and maximum with lagrange multiplier
but in general can I replace $n$ constraints with their intersection?
Apr
27
comment Minimum and maximum with lagrange multiplier
@JeanMarie updated question :)
Apr
27
revised Minimum and maximum with lagrange multiplier
added 37 characters in body
Apr
27
asked Minimum and maximum with lagrange multiplier
Feb
26
comment Doubts on inverse power method
I'm not sure to have correctly understood... What's the difference if the initial vector is real or complex?
Feb
24
revised Doubts on inverse power method
edited tags
Feb
24
asked Doubts on inverse power method
Jan
31
revised How many people at the party?
added 2 characters in body
Jan
31
comment How many people at the party?
@JimmyR. the problem is: that $n$ isn't an integer. What can I say about the number of people at the party?
Jan
31
comment How many people at the party?
@JimmyR. Maybe it's overkill. Is there a solution for 2-person cin-cin?
Jan
31
asked How many people at the party?
Dec
27
awarded  Popular Question
Aug
5
awarded  Famous Question
Jul
20
comment Solution of Second order ODE: theoretical question
@Dmoreno I'll try to explain better the question: in my book there is written "if we have to solve $y''+ay'+by=0$, the general idea is to find solutions like $y(x)=e^{\lambda x}$". ok, but do other y(x) exist? many thanks for your help!
Jul
20
comment Solution of Second order ODE: theoretical question
@Dmoreno no, it is a curiosity... i'm asking if the linear combination of exponentials fulfills the set of possible solutions.. :)
Jul
20
comment Solution of Second order ODE: theoretical question
is it the unique set of solutions?
Jul
20
revised Solution of Second order ODE: theoretical question
added 19 characters in body
Jul
20
comment Solution of Second order ODE: theoretical question
@Dmoreno mmmh, i know that, but my question was about the existence of a different class of solutions, that can't be expressed in the exponential form... are they possible?
Jul
20
comment Solution of Second order ODE: theoretical question
yes, I know it, but I was asking if there are possible solution that couldn't be expressed by exponentials ... thanks for your help!