We all know that Mathematica is great, but it also often lacks critical functionality. What kind of external packages / tools / resources do you use with Mathematica? ...

... Implicits in Scala refers to either a value that can be passed "automatically", so to speak, or a conversion from one type to another that is made automatically. Implicit Conversion Speaking very briefly about the latter type, if one calls a method m on an object o of a class C, and that class d...

... generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one by one. >>> my_list = [1, 3, 5, 9, 2, 6] >>> filtered_list = [item for item in my_list i...

...s Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?" ...

How do you dynamically set local variable in Python (where the variable name is dynamic)? 7 Answers ...

... says that it will return a random long if it fails to detect the mac: "If all attempts to obtain the hardware address fail, we choose a random 48-bit number with its eighth bit set to 1 as recommended in RFC 4122." So check that eighth bit! – deinonychusaur Fe...

I don't manage to install therubyracer gem on Yosemite 10.10. 18 Answers 18 ...

... Not strange at all, people do this all the time. Make sure the collection name is correct (case matters) and that the ObjectId is exact. Documentation is here > db.test.insert({x: 1}) > db.test.find() ...

...t the Powershell versions involving functions/aliases will always evaluate all arguments. If this is a problem, use the if expression form. share | improve this answer | foll...

...what a metaclass is, don't worry about it. :-) – kindall Dec 8 '10 at 0:15 1 The linked tutorial ...