Gretchen questions

Gretchen answers

• NumPy vs Cython - nested loop so slow?
• A C++ library for IIR filter
• Why doesn't "glEnable(GL_POINT_SMOOTH);" work to make the following point as a circle?
• VTK (visualization toolkit) versus OSG (OpenSceneGraph) , other?
• OpenGL headers for OS X & Linux
• Why were display lists deprecated in opengl 3.1?
• Fast 3D interpolation of atmospheric data in Numpy/Scipy
• What is the correct way to insert columns in a 2D vector of pointers?