### 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...