Git error when trying to push — pre-receive hook declined

You should ask whoever maintains the repo at git@mycogit/cit_pplus.git. Your commits were rejected by the pre-receive hook of that repo (that’s a user-configurable script that is intended to analyze incoming commits and decide if they are good enough to be accepted into the repo). It is also a good idea to ask that person to … Read more

What does operator “dot” (.) mean?

The dot itself is not an operator, .^ is. The .^ is a pointwise¹ (i.e. element-wise) power, as .* is the pointwise product. .^ Array power. A.^B is the matrix with elements A(i,j) to the B(i,j) power. The sizes of A and B must be the same or be compatible. C.f. “Array vs. Matrix Operations”: … Read more

Relative imports in Python 3

unfortunately, this module needs to be inside the package, and it also needs to be runnable as a script, sometimes. Any idea how I could achieve that? It’s quite common to have a layout like this… …with a mymodule.py like this… …a myothermodule.py like this… …and a main.py like this… …which works fine when you … Read more

C++ std::priority_queue uses the lambda expression

There is statement that the compiler can’t pass. I can’t understand it. Can anyone tell me in detail or How to fix it ? Best wishes to you. The statement as follow: The compiler given the information as follow: The std::priority_queue inducted in cppreference site:http://en.cppreference.com/w/cpp/container/priority_queue mainly structure as follow:

Double precision floating values in Python?

Decimal datatype Unlike hardware based binary floating point, the decimal module has a user alterable precision (defaulting to 28 places) which can be as large as needed for a given problem. If you are pressed by performance issuses, have a look at GMPY