Facundo Quiroga facundoq

Universidad Nacional De La Plata
http://facundoq.github.io/

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facundoq / mandelbrot-julia-fractal-js

Created August 14, 2013 00:29

Draw fractals based on Mandelbrot and Julia sets in Javascript. Could use some cleanup. Change line 149 by calling other functions to change the fractal drawn.

	<!DOCTYPE html>
	<html>
	<head>
	<title>Mandelbrot</title>
	<style>
	html, body { width: 100%; height: 100%; margin: 0; padding: 0}
	#leap-overlay { position: fixed; top: 0; left: 0;}
	</style>

	</head>

facundoq / poligon_from_set_of_points

Created August 3, 2015 00:33

Order set of 2d points to convert to a poligon

	function [poligon,indices]=poligon_from_set_of_points(points,max_distance)
	%
	% Note that a subset of the points may be selected if the distance between
	% two points exceeds max_distance

	dist = pdist2(points,points);

	N = size(points,1);
	indices = NaN(1,N);
	indices(1) = 1; % first point is first row in x matrix

facundoq / mnist-lenet-without-fit.jl

Last active April 19, 2017 14:46

Training a lenet on mnist using MXNet.jl, without using the `fit` function

	using MXNet


	function accuracy(predicted_probability::mx.NDArray,label::mx.NDArray)
	predicted_label=copy(mx.argmax(predicted_probability,axis=1))
	julia_label=copy(label)
	result=sum(predicted_label.==julia_label)
	result
	end

facundoq / synthetic2d_dataset.py

Created April 20, 2018 18:24

Create synthetic 2D dataset with gaussian centers to test clustering algorithms

	import numpy as np
	import matplotlib.pyplot as plt

	n=200 # samples per center
	centers= [ [10,5], [-2,4], [13,-25], [11,20], [15,-30], [3,-2], ] # centers
	#centers= [ [10,5], [-2,4], [11,20], [15,-34], ]
	dataset=np.zeros((0,3))
	sigma=2

	for i in range(len(centers)):

facundoq / video_from_image.py

Created April 16, 2020 16:45

Generate a video by applying affine transformations to an image

	# IMPORTANT install packages from command line
	# pip install numpy scikit-video scikit-image

	import skvideo.io
	import numpy as np
	from skimage import transform
	import skimage.io
	import os

	# read original image

facundoq / greekLettersXmodmap

Created August 12, 2020 15:30

Xmodmap definitions for greek letters when typing AltGr+<letter>. Not all greek letters included. Can add more by getting letter names from https://www.cl.cam.ac.uk/~mgk25/ucs/keysyms.txt

	keycode 26 = e E e E Greek_epsilon Greek_EPSILON Greek_epsilon Greek_EPSILON
	keycode 27 = r R r R Greek_rho Greek_RHO Greek_rho Greek_RHO
	keycode 28 = t T t T Greek_theta Greek_THETA Greek_theta Greek_THETA
	keycode 33 = p P p P Greek_pi Greek_PI Greek_pi Greek_PI
	keycode 38 = a A a A Greek_alpha Greek_ALPHA Greek_alpha Greek_ALPHA
	keycode 39 = s S s S Greek_sigma Greek_SIGMA Greek_sigma Greek_SIGMA
	keycode 40 = d D d D Greek_delta Greek_DELTA Greek_delta Greek_DELTA
	keycode 41 = f F f F Greek_phi Greek_PHI Greek_phi Greek_PHI
	keycode 42 = g G g G Greek_gamma Greek_GAMMA Greek_gamma Greek_GAMMA
	keycode 56 = b B b B Greek_beta Greek_BETA Greek_beta Greek_BETA