Physicist questions

• most efficient way to check neighbouring grid
• how to improve this adaptive trapezoidal rule?
• how to solve many overdetermined systems of linear equations using vectorized codes?
• use of fft, ifft and fftshift in matlab
• how to create a 3D height map in python
• how to locate the center of a bright spot in an image?
• How to solve differential equation using Python builtin function odeint?
• executing two class methods at the same time in Python
• generating two orthogonal vectors that are orthogonal to a particular direction
• How to plot individual points without curve in python?

Physicist answers