What are vectors and how are they used in programming?
I'm familiar with the mathematical/physics concept of a vector as a magnitude and a direction, but I also keep coming across references to vectors in the context of programming (for example C++ see...
simd - What is "vectorization"? - Stack Overflow
Sep 14, 2009 · Many CPUs have "vector" or "SIMD" instruction sets which apply the same operation simultaneously to two, four, or more pieces of data. Modern x86 chips have the SSE instructions, …
c++ - Vector insert () causes program to crash - Stack Overflow
May 1, 2010 · This is the first part of a function I have that's causing my program to crash: vector<Student> sortGPA (vector<Student> student) { vector<Student> sorted; Student test =
Initializing the size of a C++ vector - Stack Overflow
Undefined Behaviour !! } The default constructed vector, as in the example above creates an empty vector. Accessing elements outside of the range of the vector is Undefined Behavior. And don't …
c++ - Vector: initialization or reserve? - Stack Overflow
Unless perhaps if the vector contains types that are very expensive to copy (and don't provide fast moving in C++11), or the size of the vector is going to be enormous. * From Stroustrups C++ Style …
What are the benefits of using reserve () in a vector?
Jun 29, 2011 · 15 This excellent article deeply explains differences between deque and vector containers. Section "Experiment 2" shows the benefits of vector::reserve().
Unable to install pgvector extension for PostgreSQL [Windows]
Jul 13, 2023 · I am trying to use PostgreSQL as a vector database. And for the same I installed PostgreSQL to my windows system using the instructions provided here. To install pgvector, I …
python - numpy matrix vector multiplication - Stack Overflow
numpy.inner functions the same way as numpy.dot for matrix-vector multiplication but behaves differently for matrix-matrix and tensor multiplication (see Wikipedia regarding the differences …
C++ conversion from int to non-scalar type in a simple vector program ...
Mar 24, 2015 · C++ conversion from int to non-scalar type in a simple vector program Asked 10 years, 11 months ago Modified 2 years, 1 month ago Viewed 7k times
Need help understanding 'vector larger than max_size() with my …
Apr 21, 2024 · All vectors have a maximum size, which typically depends on the system the program is running on (like for example available memory). If you try to create a vector bigger than this …