I am trying to implement a count variable in the function below using dynamic programming specifically memoization. The method calculates the value in a Fibonacci sequence at a given index. I cannot figure out why the count (in this case the number of times this program executes) is not returned. Output: Additionally, is this a good way to implement a

# Tag: nested-function

## How to write a function to fit data to a sum of N Gaussian-like peaks without explicitly defining the expression for every possible N?

I am trying to fit a progression of Gaussian peaks to a spectral lineshape. The progression is a summation of N evenly spaced Gaussian peaks. When coded as a function, the formula for N=1 looks like …

## Why aren’t python nested functions called closures?

I have seen and used nested functions in Python, and they match the definition of a closure. So why are they called nested functions instead of closures? Are nested functions not closures because they are not used by the external world? UPDATE: I was reading about closures and it got me thinking about this concept with respect to Python. I