3.8.1 Top new questions this week

3.8.1.1 GeoPosition coordinates from Shape file (.SHP) with unknown Datum

http://mathematica.stackexchange.com/questions/124121/geoposition-coordinates-from-shape-file-shp-with-unknown-datum

 
The City of Amsterdam supports an Open Data policy. Much information can be retrieved at the level of boroughs (stadsdelen). Unfortunately, GeoGraphics does not provide outlines of these smaller  ...
 

- asked by Romke Bontekoe (12 votes), answered by JasonB (8 votes)

3.8.1.2 Detecting collisions in FEM

http://mathematica.stackexchange.com/questions/124324/detecting-collisions-in-fem

 
Say I want to study the deformation of a pitchfork when you have it fixed on the bottom and push one side. 
 
<< NDSolve`FEM` 
 = 
RegionDifference[Cuboid[{0, -5}, {1, 0}], 
Cuboid[{0.45,  ...
 

- asked by tsuresuregusa 12votes

3.8.1.3 Discovering crosswords

http://mathematica.stackexchange.com/questions/124552/discovering-crosswords

 
I am trying to create a code that can identify the following terms: MATHEMATICA, STACK, EXCHANGE and USERS. 
 
list1={"M","S","T","A","S","I","S","X","X","T","R","X"}; 
list2={"A ","T ","H ","X ","R ","X  ...
 

- asked by Leandro Maciel de Carvalho (11 votes), answered by C. E. (15 votes)

3.8.1.4 29 Differential equations hang/not solved in version 11 compared to 10.4, looking for cause

http://mathematica.stackexchange.com/questions/124573/29-differential-equations-hang-not-solved-in-version-11-compared-to-10-4-lookin

 
I run Kamke differential equations in version 11 and compared the result to version 10.4. Found 29 differential equations that are no longer solved in version 11. Actually v11 hangs on these, eating  ...
 

- asked by Nasser 11votes

3.8.1.5 Using predefined expressions as free variables in a pure function

http://mathematica.stackexchange.com/questions/124530/using-predefined-expressions-as-free-variables-in-a-pure-function

 
I want to have a function value of an expression where some variables are solutions to some set of equations, with some values of parameters. I had an idea to use pure functions for that. 
 
However,  ...
 

- asked by Picek (10 votes), answered by Alexey Popkov (4 votes)

3.8.1.6 How to delete unnecessary resistances in a resistance network

http://mathematica.stackexchange.com/questions/124475/how-to-delete-unnecessary-resistances-in-a-resistance-network

 
I'm still dealing with resistance network processing and got 
one problem left: how to delete unnecessary resistances? 
 
 
 
Background 
 
Let's assume we are junior high students and know nothing about  ...
 

- asked by Wjx (10 votes), answered by Sascha (5 votes)

3.8.1.7 Object detection in a low contrast image

http://mathematica.stackexchange.com/questions/124060/object-detection-in-a-low-contrast-image

 
I have a small dark object in the upper left corner of an image. 
 
How can I separate it from the noisy rest and determine its IntensityCentroid? 
 
 
 
The problem is that the objects intensity is not  ...
 

- asked by mrz (10 votes), answered by Svyatoslav Korneev (12 votes)