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 Feb 20 accepted How to pick non-eigenvector vector Feb 20 asked How to pick non-eigenvector vector Jan 31 revised Fibonacci numbers properties added 12 characters in body Jan 29 revised Fibonacci numbers properties added 1147 characters in body Jan 29 comment Fibonacci numbers properties @vrugtehagel and is there a simple reason why in my example it works? Jan 29 comment Fibonacci numbers properties @vrugtehagel It would be enough to simply tell why $F_a \mod F_b$ is a Fibonacci number or , if it isn't always true, when this happens to be true.. Jan 29 comment Fibonacci numbers properties @vrugtehagel Are you suggesting to actually compute the modulo and verify it belongs to Fibonacci numbers? I supposed there were direct ways... Jan 29 asked Fibonacci numbers properties Jan 4 comment Range of nonlinear function So what would you write as range? Jan 3 comment Range of nonlinear function what about $$Range(f)=\{(y,y^\frac{3}{2})\in\Bbb{R}^2~:~y\in\Bbb R^+ \}$$? Jan 3 comment Range of nonlinear function @JMoravitz The image is given by the couples (y, z) where y>0 and z=y^(3/2).. but I don't think this is the answer yet.. Am I wrong? Jan 3 revised Range of nonlinear function added 52 characters in body Jan 3 comment Range of nonlinear function @JMoravitz you exactly told what I still don't catch. I already knew that output variables are always "connected", so the image can't be $R^2$.. it's a smaller subset... But I don't manage exactly writing the relationship... Jan 3 comment How to compute the distance of an affine space from the origin Great, I was having a bad time because of this :D Jan 3 accepted How to compute the distance of an affine space from the origin Jan 3 comment Range of nonlinear function @JMoravitz Good guess! and sorry for the imprecision... so what about the range? Jan 3 revised How to compute the distance of an affine space from the origin deleted 8 characters in body Jan 3 asked Range of nonlinear function Jan 3 comment How many orthogonal/perpendicular lines to this affine space I don't want to desturb you anymore but I'm start thinking that your method only works if $Y$ is an hyperplane... Jan 3 accepted What are affine spaces for?