I roam around hunting for bits in mathematics, graphics, C++, C, Lua, Python and design-related questions; have learnt a lot here. I like giving elaborate answers with examples and citations.

Here are some I enjoyed answering and asking.

Answers:

• Rotating a Vector in 3D space
• Calculating a perpendicular offset from a diagonal line
• Deriving OpenGL's utility function gluLookAt
• How can a program be OS-independent?
• Efficiently calculating rotation matrix from 2 vectors
• In OpenGL why give gluPerspective before gluLookAt?
• How are textures referenced in shader?
• How many pixels is a meter?
• Rendering the HSV wheel
• How to interpolate hue values in HSV colour space?
• Shift operator in C
• Passing 2D array to a function
• Lua multiple assignment with tables
• Difference between move and forward
• Taking std::function with templatized parameter as a parameter
• Linkage of symbols within anonymous namespace within a regular namespace
• Confusion on strings in C

Questions:

• Purpose of Unions
• Why is (void)0 a no-op in C and C++?
• When is a conditional variable needed, isn't a mutex enough?
• Mixing extern and const

I can type 77 words per minute :)