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 May29 comment Numbering nested list according with Depth (or Level) @Aky Everything M-grown of course. :) May29 comment Numbering nested list according with Depth (or Level) @Silvia True. I much prefer MapIndexed but it's kind of curiosity like you said, MapAll useful for once. May29 comment Numbering nested list according with Depth (or Level) You can MapAll or //@ but then set first rule to {0, x}. May29 answered Numbering nested list according with Depth (or Level) May28 awarded Nice Answer May28 comment Solve and plot an equation that is dependent on a transcendental equation @nielsen Sort of noise, I see. I think those are solutions of FindRoot converging uncontrollably and to undesired roots. I added some code. Have you already moved on from this problem? May28 revised Solve and plot an equation that is dependent on a transcendental equation added 712 characters in body May25 comment Solve and plot an equation that is dependent on a transcendental equation @nielsen Which y will you use with z, min or max? Both perhaps and calculating zmin and zmax, yes? May25 comment Solve and plot an equation that is dependent on a transcendental equation @nielsen Sort of forking occurs. Suddenly more solutions for y are possible depending on x. May25 comment Solve and plot an equation that is dependent on a transcendental equation @nielsen Right, something happens as denominator drops below 2. You can start analyzing that with Manipulate example above. May25 revised Solve and plot an equation that is dependent on a transcendental equation edited body May25 comment Solve and plot an equation that is dependent on a transcendental equation Right, Tanh[x], or just x, is a better seed. May25 answered Solve and plot an equation that is dependent on a transcendental equation May24 revised Inverting a Spline-Function (Bezier or BSpline) deleted 1 characters in body May24 comment Inverting a Spline-Function (Bezier or BSpline) It's a special delay. It waits until f[t] evaluates to a list of numbers. (I learnt this here.) May24 revised Inverting a Spline-Function (Bezier or BSpline) added 278 characters in body May24 comment Inverting a Spline-Function (Bezier or BSpline) First, Last, I don't know which is x and which y in this case. :) Anyway, delayed FindRoot works. You may want to Quiet it here though. May24 comment Inverting a Spline-Function (Bezier or BSpline) @gwr Why do you expect t -> .72 since f[.5] gives y -> .6 in this case? May24 revised Inverting a Spline-Function (Bezier or BSpline) added 219 characters in body May24 comment Inverting a Spline-Function (Bezier or BSpline) FindRoot can solve this.