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Published on 2010-04-17T17:13:19Z
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Hello:
I have a unit vector in 3D space whose direction I wish to perturb by some angle within the range 0 to theta, with the position of the vector remaining the same. What is a way I can accomplish this?
Thanks.
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Hi,
I have this destructor that create error at runtime "vector iterator not dereferencable".
The gridMatrix is a std::vector<std::vector<std::vector<AtomsCell< Atom<T> * > * > * > * >
I added the typename and also the typedef but I still have the error.
I will move…
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I have this implementation of vector that I've been working on for a few days using examples from a textbook:
#include <iostream>
#include <string>
#include <cassert>
#include <algorithm>
#include <cstring>
// Vector.h
using namespace std;
template <class T>
class…
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I want to create a vector<vector<int>> where the outer vector is fixed (always containing the same vectors), but the inner vectors can be changed. For example:
int n = 2; //decided at runtime
assert(n>0);
vector<vector<int>> outer(n); //outer vector contains n empty vectors
outer…
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That's x \ y using mathematical notation. Suppose
x <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,1,1,1,3)
y <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1)
How can I get a vector with ALL the values in x that are not in y. i.e the result should be:
2,1,1,3
There is a similar question here…
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Assuming I have 2 STL vectors:
vector<int> a;
vector<int> b;
Let's also say the both have around 30 elements.
How do I add the vector b to the end of vector a?
The dirty way would be iterating through b and adding each element via push_back, though I wouldn't like to do that!
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