Chris Webb CodeDrome

## bretschneidersformula.py
from functools import reduce
import math


def calculate_area(sides, opposite_angles_degrees):

    '''
    Calculate the area of a quadrilateral using Bretschneider's Formula
    from the lengths of the sides and either pair of OPPOSITE angles.
    Arguments:-

## quadrilateralareasmain.py
import quadrilateralareas


def main():

    print("---------------------------")
    print("| codedrome.com           |")
    print("| Areas of Quadrilaterals |")
    print("---------------------------\n")

## quadrilateralareas.py
def square(side):

    return side ** 2


def rectangle(width, height):

    return width * height


## means.py
import math
import numpy as np


def main():

    print("--------------------------------")
    print("| codedrome.com                |")
    print("| Geometric and Harmonic Means |")
    print("--------------------------------\n")

## app.js
"use strict"


window.onload = function()
{
    arc();

    // pieSlice();

    // pieChart();

## svgarcandpieslice.js
"use strict"


function drawArc(settings)
{
    let d = "";

    const firstCircumferenceX = settings.centreX + settings.radius * Math.cos(settings.startAngleRadians);
    const firstCircumferenceY = settings.centreY + settings.radius * Math.sin(settings.startAngleRadians);
    const secondCircumferenceX = settings.centreX + settings.radius * Math.cos(settings.startAngleRadians + settings.sweepAngleRadians);

## svgarcandpieslice.html
<!doctype html>

<html>

<head>
    <meta charset="utf-8"/>
    <title>SVG Arc and Pie Slice</title>
</head>

</body>

## parametricequationspage.js
"use strict"

window.onload = function()
{
    const plotter = new ParametricEquationsPlotter();

    const pe = ParametricEquations.circle;
    // const pe = ParametricEquations.ellipse;
    // const pe = ParametricEquations.cardioid;
    // const pe = ParametricEquations.spiral;

## parametricequations.js
const ParametricEquations =
{
    circle:
    {
        xFunction: function (t) {return Math.cos(t)},
        yFunction: function (t) {return Math.sin(t)},
        zFunction: function (t) {return 0},
        tRange: {start: 0, end: 2 * Math.PI},
        tStep: Math.PI / 32,
        colour: "#FF0000"

## parametricequationsplotter.js
class ParametricEquationsPlotter
{
    constructor()
    {
        this._container = null,
        this._renderer = null,
        this._scene = null,
        this._light = null,
        this._camera = null,
        this._group = null,
	from functools import reduce
	import math


	def calculate_area(sides, opposite_angles_degrees):

	'''
	Calculate the area of a quadrilateral using Bretschneider's Formula
	from the lengths of the sides and either pair of OPPOSITE angles.
	Arguments:-
	import quadrilateralareas


	def main():

	print("---------------------------")
	print("\| codedrome.com \|")
	print("\| Areas of Quadrilaterals \|")
	print("---------------------------\n")
	def square(side):

	return side ** 2


	def rectangle(width, height):

	return width * height
	import math
	import numpy as np


	def main():

	print("--------------------------------")
	print("\| codedrome.com \|")
	print("\| Geometric and Harmonic Means \|")
	print("--------------------------------\n")
	"use strict"


	window.onload = function()
	{
	arc();

	// pieSlice();

	// pieChart();
	"use strict"


	function drawArc(settings)
	{
	let d = "";

	const firstCircumferenceX = settings.centreX + settings.radius * Math.cos(settings.startAngleRadians);
	const firstCircumferenceY = settings.centreY + settings.radius * Math.sin(settings.startAngleRadians);
	const secondCircumferenceX = settings.centreX + settings.radius * Math.cos(settings.startAngleRadians + settings.sweepAngleRadians);
	<!doctype html>

	<html>

	<head>
	<meta charset="utf-8"/>
	<title>SVG Arc and Pie Slice</title>
	</head>

	</body>
	"use strict"

	window.onload = function()
	{
	const plotter = new ParametricEquationsPlotter();

	const pe = ParametricEquations.circle;
	// const pe = ParametricEquations.ellipse;
	// const pe = ParametricEquations.cardioid;
	// const pe = ParametricEquations.spiral;
	const ParametricEquations =
	{
	circle:
	{
	xFunction: function (t) {return Math.cos(t)},
	yFunction: function (t) {return Math.sin(t)},
	zFunction: function (t) {return 0},
	tRange: {start: 0, end: 2 * Math.PI},
	tStep: Math.PI / 32,
	colour: "#FF0000"
	class ParametricEquationsPlotter
	{
	constructor()
	{
	this._container = null,
	this._renderer = null,
	this._scene = null,
	this._light = null,
	this._camera = null,
	this._group = null,