NorthDecoder

// example tested at https://tio.run/#cpp-gcc
// make a table with modulo calculations

#include<iostream>
using std::cout;
int main() {
  int dmax = 7;
  int nmax = 5;
  cout << "D->";
  for (int denominator = 1; denominator < dmax; denominator ++) {

NorthDecoder

openSession () {

    #  start-tmux-with-several-panes-open-at-the-same-time

    #  input from the command line
    #  usage:
    #    openSession /my_project_directory/name_here my_tmux_session_name

    #  Reference:
    #    https://askubuntu.com/questions/830484/how-to-start-tmux-with-several-panes-open-at-the-same-time#answer-1351351

NorthDecoder

#!/usr/bin/bash

clear
me=$( basename "$0" )
echo "~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ "
echo "Running script $me"
echo "~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ "
# Reference:
#   https://github.com/freeCodeCamp/chapter

NorthDecoder

#!/usr/bin/bash

# file: my-versions.sh
#   quick display the versions
#   to avoid retyping

# setup:
#       chmod 744 my-versions.sh

# command prompt usage:

NorthDecoder

def luhn(card_number):
    def digits_of(n):
        return [int(d) for d in str(n)]
    digits = digits_of(card_number)
    odd_digits = digits[-1::-2]
    even_digits = digits[-2::-2]
    checksum = 0
    checksum += sum(odd_digits)
    for d in even_digits:
        checksum += sum(digits_of(d*2))

NorthDecoder

# file: is_cc_valid.py
# LUHN Algorithm
# Validate credit card number with Luhn algorithm

def is_cc_valid(cc_number, given_checksum):
    # ref: https://en.wikipedia.org/wiki/Luhn_algorithm
    double_every_other = []
    sum_digits = []
    minus_nine = []
    

NorthDecoder

# list installed python modules
# > sorted alphabetically
import sys
import os

def list_dict_keys(a_dictionary, list_heading_text):
    """
    Print a heading and a list of dictionary keys
    to the command line.
    """

NorthDecoder

# add the following to the bottom of the ~/.bashrc file

# User specific aliases and functions
# # # #
altPrompt="$ "
#altPrompt="λ "

# uhdInfo="\u "      # user only
#uhdInfo="\w"           # working directory only
# uhdInfo="\u:\w "   # user and working directory

NorthDecoder

# file: example-class-template.py
# A Python starter template for pretesting leetcode.com
# solutions offline, prior to submission.

# Reference:

#    Class:
#    https://docs.python.org/3.7/tutorial/classes.html?highlight=class#classes
#    https://docs.python.org/3.7/tutorial/classes.html?highlight=class#class-objects

NorthDecoder

# User: https://gist.github.com/NorthDecoder/
# Filename: probe.py

# set probe_environment to
#   `True` to list resources
#   `False` to quiet listing, ie no list
probe_environment=True 

# List available packages
if probe_environment: