All Questions

I am using itertools.product to find the possible weights an asset can take given that the sum of all weights adds up to 100. min_wt = 10 max_wt = 50 step = 10 nb_Assets = 5 weight_mat = [] for i ...

What I have: I have the list List123=[-13,3,12,1] and the 2-by-4-matrix Matrix123=numpy.zeros((2,4), dtype=Decimal). What I want: I want to change all entries of the matrix to any entry of the list ...

I am programming the halftoning of images for laser-engraving. At a given setting, the laser only turns on or off, so I can give it binary images with 1-bit depth. So I convert grayscale images with 8-...

I have this code. n_nodes = len(data_x) X = np.zeros((n_nodes, n_nodes)) for i in range(n_nodes): for j in range(n_nodes): X[i, j] = data_x[i] ** j I want to do the same task with no loops ...

I have this datacube containing data for each pixel of an image (pretty much like hyperspectral imaging). I'm trying to fit a line on each pixel of the image, in an efficient way. Right now, I do it ...

I am trying to use a nested for loop to evaluate function f(r) at every combination of 2D polar coordinates. My current code is: r = np.linspace(0, 5, 10) phi = np.linespace(0,2*np.pi, 10) for i in ...

I have a nested for loop, and I'm doing some operations on it, however it's take about 20 minutes to run. Hoping to reduce the wall time. This is just a simple example to make a reproducible one, but ...

I've been writing a program to brute force check a sequence of numbers to look for euler bricks, but the method that I came up with involves a triple loop. Since nested Python loops get notoriously ...

I have 2D numpy array, I need two nested loops to iterate over each of its elements. I want to make some vectorization on the nested loops, but I keep getting an error saying, j= np.arange (0,x....

Is there a smart way to vectorize a nested for loop of inner products, where the inner index is lower bound by the outer index? Here's a simple example. Say that arr1 and arr2 are numpy arrays each ...

I made a bouncing ball simulation in Matplotlib, the update function exchange the move vectors (attributes) of the balls when they collide. Is it possible to replace the for loops in the update ...

I have the following code and I want to extract certain values from other lists that depends upon the given condition. But my data sets are huge ~ 1 million values in each list. Therefore this method ...

Say I have these lists: a = [1, 2, 3, 4] b = [6,7] c = ['a', 'b', 'c'] I would like to create a 3-Dimensional data structure that contains new lists combining all the elements of each list together ...

I am trying to speed up my code. The biggest problem is a few nested loops I have (they have to iterate over 25000 cells). However, when I try to get rid of these nested loops, I get a different ...

Below is a partial class definition for a map of 2D isometric tiles to be rendered using pyglet. class Map(object): origin = 0 drytile = tile.dry wettile = tile.wet def __init__(...