1.4.1 Top new questions this week

1.4.1.1 Join lists with nested list
1.4.1.2 Different results between V9 and V10 when using Style with Listplot
1.4.1.3 Bug in Operator Form of StringCases
1.4.1.4 Around the Clock
1.4.1.5 How to assign a list of numbers into letter grades
1.4.1.6 Joining ordered set of points with splines in spiral
1.4.1.7 Fitting ellipse to 5 given points on the plane
1.4.1.1 Join lists with nested list

http://mathematica.stackexchange.com/questions/60666/join-lists-with-nested-list

 
Is there a way of smarter way of joining list of the form 
 
l1 = {a,{b,c}}; 
l2 = {d,{e,f}}; 
l3 = {g,{h,i}}; 
 
 
To obtain 
 
{a,d,g,{b,c,e,f,h,i}} 
 
 
The code I have is 
 
{Sequence @@ #1, Flatten[#2]}  ...
 

- asked by mete (14 votes), answered by Junho Lee (9 votes)

1.4.1.2 Different results between V9 and V10 when using Style with Listplot

http://mathematica.stackexchange.com/questions/60929/different-results-between-v9-and-v10-when-using-style-with-listplot

 
Consider this example: 
 
data = Table[{x, x^2}, {x, -2, 2, 0.1}]; 
ListPlot[Style[{#1, #2}, PointSize[Abs[#2]/50], Hue[#2]] & @@@ data] 
 
 
the results from V9 and V10 are as follows: 
 
V9 
 
 
V10 
 
 
It  ...
 

- asked by Algohi (13 votes), answered by Brett Champion (7 votes)

1.4.1.3 Bug in Operator Form of StringCases

http://mathematica.stackexchange.com/questions/60871/bug-in-operator-form-of-stringcases

 
According to the documentation there's an operator form for StringCases 
 
?StringCases 
 
 
 
 
Here is the normal form 
 
StringCases["abcadcacb", "a" ~~ x_ ~~ "c"] 
 
 
 
{"abc", "adc"} 
 
 
 
Now, the operator  ...
 

- asked by RunnyKine (12 votes), answered by WReach (8 votes)

1.4.1.4 Around the Clock

http://mathematica.stackexchange.com/questions/60728/around-the-clock

 
I want to produce with Mathematica something like this 
 
 
 
Or this 
 
 
 
12 hours should be arranged in a pleasing ("rotated") style around / 
within a rectangle. I don't ask for the hands - depending on  ...
 

- asked by eldo (12 votes), answered by belisarius (15 votes)

1.4.1.5 How to assign a list of numbers into letter grades

http://mathematica.stackexchange.com/questions/60497/how-to-assign-a-list-of-numbers-into-letter-grades

 
Here is my list: 
 
collection = {76.6256, 51.9264, 50.238, 14.4203, 80.9205, 12.2036, 
2.39568, 
38.2747, 12.4422, 29.9621} 
 
collection /. {x_ /; x < 50 -> "F"} 
 
 
and this gives me 
 
 
...
 

- asked by Lonely Mathematician (12 votes), answered by belisarius (14 votes)

1.4.1.6 Joining ordered set of points with splines in spiral

http://mathematica.stackexchange.com/questions/60619/joining-ordered-set-of-points-with-splines-in-spiral

 
I have a collection of points 
 
{{-0.137445, -0.0103507}, {-0.0452845, 0.0343154}, {0.30498, 
-0.0118266}, {-0.0224633, 0.0197979}, 
{-0.168469, -0.0197066}, {0.0973217, 0.0478612}, {-0.0441388,  ...
 

- asked by martin (11 votes), answered by Rahul Narain (11 votes)

1.4.1.7 Fitting ellipse to 5 given points on the plane

http://mathematica.stackexchange.com/questions/60779/fitting-ellipse-to-5-given-points-on-the-plane

 
Five points are required to define a unique ellipse. An ellipse has five 
degrees of freedom: the $x$ and $y$ coordinates of each focus, and the 
sum of the distance from each focus to a point on the  ...
 

- asked by user153012 (11 votes), answered by Mark McClure (21 votes)