1.2.1 Top new questions this week

1.2.1.1 Finding length of intersection of two surfaces
1.2.1.2 How to ask Mathematica to imitate Andy Warhol's pop-art painting?
1.2.1.3 How to speed up my Project Euler code
1.2.1.4 How do you turn off the Dashed graphics directive?
1.2.1.5 symbolic integration error
1.2.1.6 How to generate a blank crossword sheet?
1.2.1.7 Where to see all Mathematica units
1.2.1.1 Finding length of intersection of two surfaces

http://mathematica.stackexchange.com/questions/58768/finding-length-of-intersection-of-two-surfaces

 
I would like to know how we find the length of the intersection of two 
surfaces. For instance, in the following example,a surface intersects 
with a plane: 
 
 
 
How do we find the length of intersection  ...
 

- asked by user19522 (25 votes), answered by RunnyKine (18 votes)

1.2.1.2 How to ask Mathematica to imitate Andy Warhol's pop-art painting?

http://mathematica.stackexchange.com/questions/59132/how-to-ask-mathematica-to-imitate-andy-warhols-pop-art-painting

 
I tried to ask Mathematica to imitate Andy Warhol, let it convert a 
Marilyn Monroe's portrait looks like Warhol's world famous pop-art 
painting. However, the result shown below is far from  ...
 

- asked by Putterboy (24 votes), answered by Karsten 7. (16 votes)

1.2.1.3 How to speed up my Project Euler code

http://mathematica.stackexchange.com/questions/58751/how-to-speed-up-my-project-euler-code

 
The evaluation speed of Mathematica often depresses me. It did it again 
when I wrote a code to solve a Project Euler problem. 
https://projecteuler.net/problem=206 
 
Here's my code: 
 
ClearAll[a]; 
a = 
...
 

- asked by Eric (17 votes), answered by Teake Nutma (13 votes)

1.2.1.4 How do you turn off the Dashed graphics directive?

http://mathematica.stackexchange.com/questions/58992/how-do-you-turn-off-the-dashed-graphics-directive

 
I'm looking at Graphics Directives but can't figure out a way to turn 
off the Dashed graphics directive. For example, given 
 
ListPlot[{Table[Sin[i], {i, 25}], Table[Cos[i], {i, 25}]}, 
Joined ->  ...
 

- asked by Andrew Cheong (16 votes), answered by m_goldberg (15 votes)

1.2.1.5 symbolic integration error

http://mathematica.stackexchange.com/questions/58940/symbolic-integration-error

 
I'm running Mathematica 10.0.0 and encountered a disturbing error in the 
symbolic integration of a rather simple function 
 
Integrate[(1 - x)*(1 + 2*x)^6/Sqrt[1 - x^2], {x, -1, 1}]/Pi 
 
 
The correct  ...
 

- asked by Carlo Beenakker (16 votes), answered by Artes (11 votes)

1.2.1.6 How to generate a blank crossword sheet?

http://mathematica.stackexchange.com/questions/59001/how-to-generate-a-blank-crossword-sheet

 
I attempted to generate a blank crossword sheet. My method is by 
combining the rows and columns as shown on the graph below. However, 
some of the across and down numbers then appeared out of place  ...
 

- asked by Putterboy (14 votes), answered by ybeltukov (17 votes)

1.2.1.7 Where to see all Mathematica units

http://mathematica.stackexchange.com/questions/58793/where-to-see-all-mathematica-units

 
Is there a tutorial page that have all Mathematica units? I sometimes 
have hard time figuring out the correct unit spelling when using 
quantities
 

- asked by Yituo (13 votes), answered by paw (17 votes)