9.35.3 Can you answer these questions?

9.35.3.1 Can Mathematica convert bitmaps to vectors?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=291407

I know that in Mathematica  doesn't seem to support vector graphics for 3D ploting, e.g. exporting-2d-projection-of-3d-graph-in-svg-form. But as far as I know, some paid software can achieve this.  ... 
[plotting] [graphics3d] [polygons] [svg-format]
 

asked by licheng https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=67902 Score of 2

9.35.3.2 How to generate a good Fourier spectrum with incomplete data?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=291457

This problem is perhaps a little bit more mathematical than programmatic. I'm using  Fourier  to analyze my data. Suppose I have a data set 
... 
[fourier-analysis]
 

asked by Harry https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19991 Score of 1

9.35.3.3 Finding out derivative of variables from an expression

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=291373

I have the following expression 
 gh=(G^(0,0,1))[0,1,x]+G[1,x]; 
 
Where  G^(0,0,1)[0,1,x]=D[G[0,1,x],x] . This is a model expression. ... 
[functions]
 

asked by Tanmoy Pati https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=91770 Score of 1

answered by Roland F https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92018 Score of 0