| const { execFile } = require('child_process'); | |
| var js = JSON.stringify({a:"fiore", b:[1,2,3], c:{}, d:[]}); | |
| execFile('/tmp/comm.py', [js], { encoding: 'utf8' }, (error, stdout) => { | |
| if (error) { | |
| throw new Error(error); | |
| } | |
| console.log(stdout); | |
| }); |
| import numpy as np | |
| def compute_mean(v): | |
| return sum(v)/len(v) | |
| def subtract_mean_to_col(M, idx): | |
| M[:, idx] = M[:, idx] - compute_mean(M[:, idx]) | |
| def alg_two(n=None, m=None, A=None): | |
| #1 |
| from flask import Flask, url_for | |
| from flask_admin import Admin, form | |
| from flask_sqlalchemy import SQLAlchemy | |
| from flask_admin.contrib.sqla import ModelView | |
| from jinja2 import Markup | |
| """ | |
| This just an illustrative example, take it as a concept example, | |
| nothing more, it is not secure and does not handle image deletion. | |
| Hereby more complete examples: |
| #!/usr/bin/python3 | |
| # ref http://www.cs.mcgill.ca/~pnguyen/251F09/matrix-mult.pdf | |
| import numpy as np | |
| def matrix_mul(A,B): | |
| if A.shape == (1,1): | |
| return A.dot(B) |
Simple list of commands useful to fix locales on raspberry pi. In fact after a fresh install often perl is complaining about misconfigured locales. \
alternatively one can fill the /etc/default/locale with
LANG=en_US.UTF-8
LC_TIME=it_IT.UTF-8
LANGUAGE=en_US:en
LC_ALL=en_US.UTF-8
A lot of times you are developing a web application on your own laptop or home computer and would like to demo it to the public. Most of those times you are behind a router/firewall and you don't have a public IP address. Instead of configuring routers (often not possible), this solution gives you a public URL that's reverse tunnelled via ssh to your laptop.
Because of the relaxation of the sshd setup, it's best used on a dedicated virtual machine just for this (an Amazon micro instance for example).
| # Your init script | |
| # | |
| # Atom will evaluate this file each time a new window is opened. It is run | |
| # after packages are loaded/activated and after the previous editor state | |
| # has been restored. | |
| # | |
| # An example hack to log to the console when each text editor is saved. | |
| # | |
| # atom.workspace.observeTextEditors (editor) -> | |
| # editor.onDidSave -> |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>WebSocket demo</title> | |
| </head> | |
| <body> | |
| <script> | |
| var messages = document.createElement('ul'); |
| % https://www.overleaf.com/9963466dzbgyfnsjpmx#/36591581/ | |
| \documentclass{article} | |
| \usepackage{tikz} | |
| %%%< | |
| \usepackage{verbatim} | |
| \usepackage[active,tightpage]{preview} | |
| \PreviewEnvironment{tikzpicture} | |
| \setlength{\PreviewBorder}{10pt}% | |
| \usetikzlibrary{patterns,decorations.pathreplacing} | |
| \usetikzlibrary{snakes} |
| %%% Exercises description on comments; | |
| -module(exercises0). | |
| -export([count/1,repeated_elems/1,most_frequent_elem/1,ntimes/3]). | |
| %%% #1 | |
| count([H|T]) -> | |
| count([H|T],[]); | |
| count([]) -> []. |