3D Vector defined by 2 angles?

So basicly I'm looking for a way to calculate the x,y and z component of a vector using 2 angles as shown: Where al...

What does std::vector look like in memory??

I read that std::vector should be contiguous. My understanding is, that its elements should be stored together, not ...

Accelerometer - Rolling Ball in Ball?

i want to use the phones accelerometer for rolling a Ball in a Ball. The movement works correctly, the problem is th...

rotation of the line by 30 degrees?

Sometimes A can be below line BC and sometimes above -> so sometimes rotate clockwise and sometimes countercloc...

How to plot vectors in python using matplotlib?

I am taking a course on linear algebra and I want to visualize the vectors in action, such as vector addition, norma...

Vector of Vectors to create matrix?

I am trying to take in an input for the dimensions of a 2D matrix. And then use user input to fill in this matrix. T...

Return reference to a vector member variable?

I have a vector as member in a class and I want to return a reference to it through a getVector() function, so as to...

Initialize empty vector in structure - c++?

I have a struct: typedef struct user { string username; vector<unsigned char> userpassword; } user_t...

allocating vectors (or vectors of vectors) dynamically?

I need to dynamically allocate 1-D and 2-D arrays whose sizes are given at run-time. I managed to "discover" std::v...

How to generate a unit vector pointing in a random direction with isotropic distribution of direction??

I need to create a method to generate a unit vector in three dimensions that points in a random direction using a ra...

How to find common elements from multiple vectors??

Can anyone tell me how to find the common elements from multiple vectors? a <- c(1,3,5,7,9) b <- c(3,6,8,9,10...

How can I resize a 2D vector of objects given the width and height??

My class, GameBoard, has a member variable that is a 2D vector of an object of the class Tile. The GameBoard constru...

How to check if each element in a vector is integer or not in R??

Say, I have a vector y, and I want to check if each element in y is integer or not, and if not, stop with an error m...

Compute Median of Values Stored In Vector - C++??

I'm a programming student, and for a project I'm working on, on of the things I have to do is compute the median val...