12.2.2 Greatest hits from previous weeks

12.2.2.1 Get a "step-by-step" evaluation in Mathematica
12.2.2.2 Mathematica code for Bifurcation Diagram
12.2.2.3 Is there something like DensityPlot3D to visualize atomic orbitals?
12.2.2.4 How can I plot a graph of an integral?
12.2.2.5 How to make Huffman coding by using tree representation
12.2.2.6 Is it possible to recover an unsaved notebook after closing it?
12.2.2.7 1 Plot, 2 Scale/Axis
12.2.2.1 Get a "step-by-step" evaluation in Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=148

Is it possible in Mathematica to get a step-by-step evaluation of some functions; that's to say, outputting not only the result but all the stages that have led to it? If so, how does one do it? 
 
... 
[evaluation] [interactive] [faq]
 
asked by Cydonia7 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=44 Score of 149
answered by J. M.'s missing motivation https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=50 Score of 122
12.2.2.2 Mathematica code for Bifurcation Diagram

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=13277

At the moment I am trying to construct a bifurcation diagram of the iterative function $f(x)=$ $ax-1.1975x^3$. I've scoured the internet for pre-made bifurcation diagrams and found many (mostly of the ... 
[plotting] [graphics] [code-request]
 
asked by Mel https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=3249 Score of 33
answered by Mark McClure https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36 Score of 59
12.2.2.3 Is there something like DensityPlot3D to visualize atomic orbitals?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=32378

I'm visualizing some hydrogen like atomic orbitals.  For looking at plane slices of the probability density, the  DensityPlot  function works well, and with something ... 
[plotting] [physics] [chemistry]
 
asked by Peeter Joot https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10 Score of 47
answered by xslittlegrass https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1364 Score of 29
12.2.2.4 How can I plot a graph of an integral?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=78451

I want to plot the following function: 
 
$$\int \left(\frac{\Gamma (x+1)}{2}-\frac{\Gamma (x-1)}{2}\right) \, dx$$ 
[plotting]
 
asked by Anixx https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=651 Score of 5
answered by k_v https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=24727 Score of 11
12.2.2.5 How to make Huffman coding by using tree representation

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=47873

I want to make Huffman coding with Mathematica. I saw a demonstration, but it is not the thing I want to make. I want to show the tree for given string. 
Here is an example picture: 
You can see the ... 
[trees]
 
asked by forumcash https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14114 Score of 2
answered by user1066 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=106 Score of 2
12.2.2.6 Is it possible to recover an unsaved notebook after closing it?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=74205

I just Ctrl-Alt-Deleted out of Mathematica after I crashed it while running. I had not saved it all day and had done quite a lot of work on it. When I reopen the file, it shows a version with none of ... 
[crash] [save]
 
asked by Shane https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=25422 Score of 14
answered by bbgodfrey https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1063 Score of 11
12.2.2.7 1 Plot, 2 Scale/Axis

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=627

I would like to plot those two datasets on top of each other. But they have very different range on the $y$ axis. How can I have two different axis? 
 
I found the following on the help menu but quite ... 
[plotting] [customization]
 
asked by 500 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=172 Score of 164
answered by ArgentoSapiens https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92 Score of 165