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MathQuill.html
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<!-- Developer Notes 1:
- Creating a side bar icon which opens a side bar tab whose main function is to work like a smol wiki having
two tabs, one is example of usage and how it works.
- Another thing is to make the width 30% and make area outside of the side dark when opened.
-- (Give an option to make it normal for people having issues).
- Click outside should close the window or make it hidden.
-- a pin button can be used to pin it so it doesn't gives issues with clicking outside of the area
-->
<!-- Developer Notes 2:
- Functions will have their own seperate JS file.
-- Wellll, I will think about it
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Marginal Calculator</title>
<link rel="stylesheet" href="app.css" />
<link rel="stylesheet" href="components/tabs.css" />
<link rel="icon" type="image/x-icon" href="components/favicon-1.ico" />
</head>
<body>
<div class="se-pre-con"></div>
<div style="margin: 0 0 1rem">
<h2>Calculator</h2>
<!-- use storage session check if there is a session. -->
<span>
Cache Clear in case of new commit/change
<button onclick="window.location.reload(true)">Clear</button>
</span>
</div>
<!-- <div class="side_bar_tab"></div> -->
<div id="tabs">
<div class="tab">
<button
class="tablinks"
onclick="openTab(event, 'Marginal_Revenue_Tab')"
>
Marginal Revenue
</button>
<button class="tablinks" onclick="openTab(event, 'PED')">
Price Elasticity of Demand (PED)
</button>
<button class="tablinks" onclick="openTab(event, 'YED')">
Income Elasticity of Demand (YED)
</button>
<button class="tablinks" onclick="openTab(event, 'XED')">
Cross Price Elasticity of Demand (XED)
</button>
<button class="tablinks" onclick="openTab(event, 'PC')">
Alpha Feature
</button>
</div>
<!-- Marginal Revenue (MR) -->
<div id="Marginal_Revenue_Tab" class="tabcontent">
<div class="text_and_input">
<p class="margin-right-1rem">Expression</p>
<input
type="text"
value="49 + 8*q + 6*Q^2"
placeholder="49 + 8*q + 6*Q^2"
id="expression"
/>
</div>
<!-- 55 + 6*q - 7*q^2 + 3*q^3 === Q = 4 === 94 -->
<div class="text_and_input">
<p class="margin-right-1rem">Value of Q:</p>
<input type="text" value="9" placeholder="Value of Q" id="q_value" />
</div>
<button style="margin-top: 6px" type="button" onclick="MRCheck()">
Calculate!
</button>
<div id="mr1" class="left-align">
<h2 id="derivation_h2"></h2>
<p id="derivative_step1" class="hide"></p>
<p id="derivative_step1_2" class="no-margin"></p>
<p id="derivative_step2" class="hide"></p>
<p id="derivative_step2_2" class="no-margin"></p>
</div>
<div id="mr2" class="left-align">
<h2 id="puttingValues_h2"></h2>
<p id="puttingValues_step1" class="hide"></p>
<p id="puttingValues_step1_1" class="no-margin"></p>
<p id="puttingValues_step1_2" class="no-margin"></p>
<p id="puttingValues_step2" class="hide"></p>
<p id="puttingValues_step2_1" class="no-margin"></p>
<span id="result"></span>
</div>
<div id="mr3" class="left-align">
<h2 id="Marginal_Conclusion_1"></h2>
<span id="Marginal_Conclusion_2"></span>
</div>
</div>
<!-- Price Elasticity of Demand (PED) -->
<div id="PED" class="tabcontent">
<div>
<h1 style="font-size: 20px">Price Elasticity of Demand (PED)</h1>
<!-- Need of Values -->
<div id="checkPEDRequirements">
<span> Do you need to take out: </span>
<label id="ped_1_1">
<input type="checkbox" value="1" name="status" />
YED
</label>
<label id="ped_1_2">
<input type="checkbox" value="1" name="status" />
XED
</label>
<label id="ped_1_3">
<input type="checkbox" value="1" name="status" />
Percentage Change
</label>
</div>
<!-- HTML Selector: 1, 2, 3 -->
<div id="observe_ped_change">
<span>Price Goods Limit:</span>
<label>
<input type="radio" value="1" id="ped_1" name="status" />
1
</label>
<label>
<input type="radio" value="2" id="ped_2" name="status" />
2
</label>
<label>
<input type="radio" value="3" id="ped_3" name="status" />
3
</label>
</div>
<div>
<!-- PED Expression -->
<span class="margin-right-1rem">Expression</span>
<input
type="text"
style="width: 50vw"
value="4850 - 5 * p1 + 1.5 * p2 + 0.1 * y"
placeholder="1456 - P1 + 0.75 * P2 - 0.5 * p3 + 0.05*Y"
id="ped_expression"
/>
</div>
<!-- 700-2*p+0.02*y -->
<!-- 5000 -->
<!-- One P Value Holder-->
<!-- Two P Value Holder-->
<!-- "4850 - 5 * p1 + 1.5 * p2 + 0.1 * y" -->
<!-- Three P Value Holder-->
<!-- "1456 - P1 + 0.75 * P2 - 0.5 * p3 + 0.05*Y" -->
<!-- 18361 -->
<div
style="
display: flex;
flex-direction: column;
align-items: flex-start;
"
>
<!-- PED Goods Result -->
<div id="PED_goods" style="display: block; margin: 1rem 0">
<span id="ped_result"></span>
</div>
<div
style="display: flex; flex-direction: row; align-items: baseline"
>
<!-- PED Income (Y) -->
<p class="margin-right-1rem" style="margin-top: 0">Income (Y)</p>
<input
id="ped_income"
value="18361"
type="text"
placeholder="Income"
/>
</div>
<!-- PED Calculate -->
<button style="margin: 1rem 0" type="button" onclick="PEDCheck()">
Calculate!
</button>
</div>
<!-- PED Answer Display -->
<div id="ped1" class="left-align">
<h2 id="ped_find_q"></h2>
<p id="ped_calculate_step1" class="hide"></p>
<p id="ped_calculate_step1_1" class="no-margin"></p>
<p id="ped_calculate_step1_2" class="no-margin"></p>
<p id="ped_calculate_step1_3" class="no-margin"></p>
</div>
<div id="ped2" class="left-align">
<h2 id="ped_find_dev"></h2>
<p id="ped_deviation_1" class="hide"></p>
<p id="ped_deviation_1_1" class="no-margin"></p>
<p id="ped_deviation_1_2" class="no-margin"></p>
<p id="ped_deviation_1_3" class="no-margin"></p>
</div>
<div id="ped3" class="left-align">
<h2 id="find_ped"></h2>
<p id="find_ped_1" class="hide"></p>
<p id="find_ped_1_1" class="no-margin"></p>
<p id="find_ped_1_2" class="no-margin"></p>
<p id="find_ped_1_3" class="no-margin"></p>
</div>
<div id="ped4" class="left-align">
<h2 id="ped_result_h2"></h2>
<p id="ped_result_1" class="hide"></p>
<p id="ped_result_1_1" class="no-margin"></p>
<p id="ped_result_1_2" class=""></p>
</div>
<div class="if_active_yed">
<div id="ped5-yed" class="left-align">
<h2 id="ped5-yed-h2"></h2>
<p id="ped5-yed-1" class="hide"></p>
<p id="ped5-yed-1_1" class="no-margin"></p>
<p id="ped5-yed-1_2" class="no-margin"></p>
<p id="ped5-yed-1_3" class="no-margin"></p>
</div>
</div>
<div class="if_active_xed">
<div id="ped6-yed" class="left-align">
<h2 id="ped6-yed-1"></h2>
<p id="ped6-yed-1_1" class="hide"></p>
<p id="ped6-yed-1_2" class="no-margin"></p>
<p id="ped6-yed-1_3" class=""></p>
</div>
</div>
</div>
</div>
<div id="YED" class="tabcontent">
<h3>YED</h3>
<p>YED will be arriving soon from rest.</p>
</div>
<div id="XED" class="tabcontent">
<h3>XED</h3>
<p>
XED will be arriving soon from a lonnnnnng breakfast (that is until
the dev ends making this one).
</p>
</div>
<div id="PC" class="tabcontent">
<div>
<h3>Alpha Version</h3>
<p>
This feature currently supports calculation of PED, YED, XED, and
Percent Change without any text Styling.
</p>
</div>
<!-- PED Expression -->
<span class="margin-right-1rem">Expression</span>
<input
type="text"
style="width: 50vw"
value="4850 - 5 * p1 + 1.5 * p2 + 0.1 * y"
placeholder="Expression"
id="student_expression"
/>
<!-- <p>Type math here: <span id="math-field"></span></p>
<p>LaTeX of what you typed: <span id="latex"></span></p> -->
<div class="text_and_input style='margin: 10px 0 0 1rem'">
<p class="margin-right-1rem">Pay of Goods 1 (P1)</p>
<input
ng-pattern="/^\d+$/"
id="pog1"
value="209"
type="number"
placeholder="Price of Good 1"
/>
</div>
<div class="text_and_input">
<p class="margin-right-1rem">Pay of Goods 2 (P2)</p>
<input
ng-pattern="/^\d+$/"
id="pog2"
value="101"
type="number"
placeholder="Price of Good 2"
/>
</div>
<div class="text_and_input">
<p class="margin-right-1rem">Pay of Goods 3 (P3)</p>
<input
ng-pattern="/^\d+$/"
id="pog3"
value="478"
type="number"
placeholder="Price of Good 3"
/>
</div>
<div class="text_and_input">
<!-- PED Income (Y) -->
<p class="margin-right-1rem">Income (Y)</p>
<input
id="student_income"
type="number"
value="18361"
placeholder="Income"
ng-pattern="/^\d+$/"
/>
</div>
<!-- Select Options for Percent Change -->
<h3>Percent Change</h3>
<div
style="display: flex; flex-direction: row; align-items: flex-start"
>
<p>
Select the goods to compare:
<select name="good1" id="good1">
<option value="good 1">Goods 1</option>
<option value="good 2">Goods 2</option>
<option value="good 3">Goods 3</option>
</select>
<select name="good2" id="good2">
<option value="good 1">Goods 1</option>
<option value="good 2">Goods 2</option>
<option value="good 3">Goods 3</option>
</select>
</p>
</div>
<div
style="display: flex; flex-direction: row; align-items: flex-start"
>
<p>
And was there a decrease or increase:
<select name="decreaseOrIncrease" id="decreaseOrIncrease">
<option value="+">Increase</option>
<option value="-">Decrease</option>
</select>
</p>
</div>
<div
style="display: flex; flex-direction: row; align-items: flex-start"
>
<p>
Then by how much percent?
<input
value="5"
type="number"
style="width: 50px"
class="input-percent"
id="percent"
/>
<span>%</span>
</p>
</div>
<!-- PED Calculate -->
<button
style="margin: 1rem 0"
type="button"
onclick="StudentValuesCheck()"
>
Calculate!
</button>
<!-- -->
<!-- Answers -->
<!-- Part 1 -->
<div id="students_tab_1" class="left-align">
<hr />
<span id="part_1_PED_h2"></span>
<span id="part_1_PED-1_hide" class="hide"></span>
<span id="part_1_PED-1-1" class="px-10-ud"></span>
<span id="part_1_PED-1-2" class="px-10-ud"></span>
<span id="part_1_PED-1-3" class="px-10-ud"></span>
<span id="part_1_PED-1-4" class="px-10-ud"></span>
<span id="part_1_PED-1-5" class="px-10-ud"></span>
<span id="part_1_PED-1-6" class="px-10-ud"></span>
<span id="part_1_PED-1-7" class="px-10-ud"></span>
<span id="part_1_PED-1-8" class="px-10-ud"></span>
<span id="part_1_PED-1-9" class="px-10-ud"></span>
<span id="part_1_PED-1-10" class="px-10-ud"></span>
<span id="part_1_PED-1-11" class="px-10-ud"></span>
</div>
<!-- Part 2 -->
<div id="students_tab_2" class="left-align">
<hr />
<span id="part_2_YED_h2"></span>
<span id="part_2_YED-1_hide" class="hide"></span>
<span id="part_2_YED-1-1" class="px-10-ud"></span>
<span id="part_2_YED-1-2" class="px-10-ud"></span>
<span id="part_2_YED-1-3" class="px-10-ud"></span>
<span id="part_2_YED-1-4" class="px-10-ud"></span>
<span id="part_2_YED-1-5" class="px-10-ud"></span>
<span id="part_2_YED-1-6" class="px-10-ud"></span>
<span id="part_2_YED-1-7" class="px-10-ud"></span>
<span id="part_2_YED-1-8" class="px-10-ud"></span>
<span id="part_2_YED-1-9" class="px-10-ud"></span>
</div>
<!-- Part 3 -->
<div id="students_tab_3" class="left-align">
<hr />
<span id="part_3_XED_h2"></span>
<span id="part_3_XED_hide" class="hide"></span>
<span id="part_3_XED_1" class="px-10-ud"></span>
<span id="part_3_XED_2" class="px-10-ud"></span>
<span id="part_3_XED_3" class="px-10-ud"></span>
<span id="part_3_XED_4" class="px-10-ud"></span>
<span id="part_3_XED_5" class="px-10-ud"></span>
<span id="part_3_XED_6" class="px-10-ud"></span>
<span id="part_3_XED_7" class="px-10-ud"></span>
<span id="part_3_XED_8" class="px-10-ud"></span>
</div>
<!-- Part 4 -->
<div id="students_tab_4" class="left-align">
<hr />
<span id="part_4_XED_h2"></span>
<span id="part_4_XED_hide" class="hide"></span>
<span id="part_4_XED_1" class="px-10-ud"></span>
<span id="part_4_XED_2" class="px-10-ud"></span>
<span id="part_4_XED_3" class="px-10-ud"></span>
<span id="part_4_XED_4" class="px-10-ud"></span>
<span id="part_4_XED_5" class="px-10-ud"></span>
<span id="part_4_XED_6" class="px-10-ud"></span>
<span id="part_4_XED_7" class="px-10-ud"></span>
<span id="part_4_XED_8" class="px-10-ud"></span>
</div>
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<span id="part_5_percent_change_6" class="px-10-ud"></span>
<span id="part_5_percent_change_7" class="px-10-ud"></span>
<span id="part_5_percent_change_8" class="px-10-ud"></span>
<span id="part_5_percent_change_9" class="px-10-ud"></span>
<span id="part_5_percent_change_10" class="px-10-ud"></span>
<span id="part_5_percent_change_11" class="px-10-ud"></span>
<span id="part_5_percent_change_12" class="px-10-ud"></span>
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for (var data = 1; data <= repeat; data++) {
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}
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log(
`The repeat is given less than 1, current value of repeat: ${repeat}`
);
}
} catch (error) {
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}
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// Latex Function
function LatexValue(id, nerdamerExpression, TheElement, data) {
// Renders data
document.getElementById(id).innerHTML = katex.render(
data + `= ${nerdamer.expressions(true, "LaTeX")[nerdamerExpression]}`,
document.getElementById(TheElement),
{
displayMode: true,
macros: {
"\\RR": "\\mathbb{R}",
},
}
);
}
// Latex Function Without Nerdamer
function LatexValue_WithoutNerdamer(id, expressionValue, TheElement, data) {
document.getElementById(id).innerHTML = katex.render(
data + `= ${expressionValue}`,
document.getElementById(TheElement),
{
displayMode: true,
macros: {
"\\RR": "\\mathbb{R}",
},
}
);
}
// Each Value Checker
function valueCheck(dataExpression) {
// Split using a space character
let arr = dataExpression.split(" ");
// Making the Array
var value1 = [];
for (let index = 0; index < arr.length; index++) {
value1 += `${arr[index]} `;
}
// Result
var finalAnswer = eval(math.evaluate(value1));
console.log(value1);
console.log(finalAnswer);
answers = {
derivative: deriveExpression(expressionValue),
puttingValues: value1,
answer: finalAnswer,
};
return answers;
}
// Marginal Revenue Function
function MRCheck() {
hideToShow("mr", "flex", 3);
// Obtaining Input Value
var expression = document
.getElementById("expression")
.value.toLowerCase()
.replace(/q/g, "x"); // This line replaces any `x` variable with `q`
// Logs The Result
console.log(expression);
var q_value = document.getElementById("q_value").value; // Gets Value of Q
// Marginal Revenue Calculation
function MarginalRevenue(expression, Q) {
// Obtaining the Expression from first Function
var expressionValue = expression,
deviationResult = deriveExpression(expressionValue),
result = deviationResult.replace(/x/g, Q);
console.log(deviationResult);
// Split using a space character
let arr = result.split(" ");
// Making the Array
var value1 = [];
for (let index = 0; index < arr.length; index++) {
value1 += `${arr[index]} `;
}
// Result
var finalAnswer = eval(math.evaluate(value1));
console.log(value1);
console.log(finalAnswer);
// Providing the answers to variables which needs it.
answers = {
derivative: deriveExpression(expressionValue),
puttingValues: value1,
answer: finalAnswer,
};
console.log("-------------------");
return answers;
}
// Marginal Revenue Function Calculation 2
function MarginalRevenueDisplay() {
var result = MarginalRevenue(expression, q_value);
// Derivation
document.getElementById("derivation_h2").innerHTML =
"Step 1: Derivation";
var element = "derivative_step1_2";
var firstNearDream = nerdamer(`d/dQ(${expression.replace(/x/g, "Q")})`);
LatexValue("derivative_step1", "1", element, "MR ");
element = "derivative_step2_2";
var secondNearDream = nerdamer(
`${result.derivative.replace(/x/g, "Q")}`
);
LatexValue("derivative_step2", "2", element, "MR ");
// Putting Values
document.getElementById("puttingValues_h2").innerHTML =
"Step 2: Putting Values";
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element = "puttingValues_step1_1";
var thirdNearDream = nerdamer(`${q_value}`);
LatexValue("puttingValues_step1", "3", element, "Value of Q");
// puttingValues_step1_1
element = "puttingValues_step1_2";
var secondNearDream = nerdamer(`${result.derivative}`);
LatexValue("puttingValues_step1", "2", element, "MR ");
// puttingValues_step2_1
element = "puttingValues_step2_1";
LatexValue_WithoutNerdamer(
"puttingValues_step2",
result.puttingValues,
element,
`MR `
);
// Results
document.getElementById("result").innerHTML = `MR = ${result.answer}`;
// Conclusion
document.getElementById("Marginal_Conclusion_1").innerHTML =
"Conclusion";
document.getElementById(
"Marginal_Conclusion_2"
).innerHTML = `Hence the revenue of ${q_value} units is $${result.answer}`;
nerdamer.flush();
}
// Function that displays values on HTML page
try {
MarginalRevenueDisplay();
} catch (error) {
document.getElementById("result").innerHTML =
"There is some issue in the formula or the typed data is invalid";
console.log(error);
}
}
// <!-- Script for PED -->
// <!-- Script to change Price good limits -->
var result = document.querySelector("#ped_result");
document
.querySelector("#observe_ped_change")
.addEventListener("change", function (e) {
var target = e.target;
var data;
switch (target.value) {
case "1":
data = `<div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 1 (P)</p><input id="pg1"value="25"type="text"placeholder="Price of Good 1"/></div>`;
hideToShow();
document.querySelector("#ped_1_2").style.visibility = "hidden";
document.querySelector("#ped_1_3").style.visibility = "hidden";
break;
case "2":
data = `<div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 1 (P1)</p><input id="pg1"value="209"type="text"placeholder="Price of Good 1"/></div><div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 2 (P2)</p><input id="pg2"value="101"type="text"placeholder="Price of Good 2"/></div>`;
document.querySelector("#ped_1_2").style.visibility = "initial";
document.querySelector("#ped_1_3").style.visibility = "initial";
break;
case "3":
data = `<div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 1 (P1)</p><input id="pg1"value="209"type="text"placeholder="Price of Good 1"/></div><div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 2 (P2)</p><input id="pg2"value="101"type="text"placeholder="Price of Good 2"/></div><div class="text_and_input"><p class="margin-right-1rem">Pay of Goods 3 (P3)</p><input id="pg3"value="478"type="text"placeholder="Price of Good 3"/></div>`;
document.querySelector("#ped_1_2").style.visibility = "hidden";
document.querySelector("#ped_1_3").style.visibility = "hidden";
hideToShow();
break;
}
console.log(e.target.defaultValue);
select_value = e.target.defaultValue;
result.innerHTML = data;
});
// <!-- PED, YED, XED Calculator -->
////////////
// Functions
////////////
// Variable Replacer
function variableReplacer(
expression,
valueToChange,
value1,
valueToChange2,
value2,
valueToChange3,
value3,
valueToChange4,
value4
) {
var result;
if (value4) {
result = expression.split(valueToChange).join(value1);
result = result.split(valueToChange2).join(value2);
result = result.split(valueToChange3).join(value3);
result = result.split(valueToChange4).join(value4);
return result;
} else if (value3) {
result = expression.split(valueToChange).join(value1);
result = result.split(valueToChange2).join(value2);
result = result.split(valueToChange3).join(value3);
return result;
} else if (value2) {
result = expression.split(valueToChange).join(value1);
result = result.split(valueToChange2).join(value2);
return result;
} else {
result = expression.split(valueToChange).join(value1);
return result;
}
}
// Expression Spliter
function expressionSpliter(expression) {
// Split using a space character
let arr = expression.split(" ");
// Making the Array
var array = [];
for (let index = 0; index < arr.length; index++) {
array += `${arr[index]} `;
}
console.log("Hello, The array is complete! " + array);
return array;
}
// Q Finder
function Q_Checker(expression) {
var q_array = expressionSpliter(expression);
// var q_result = eval(math.evaluate(q_array));
var q_result = eval(q_array);
console.log(q_array);
console.log(q_result);
var answers = {
puttingValues: q_array,
answer: q_result,
};
return answers;
}
function checkPED(value) {
var comment, is_Q, data;
if (value < 1) {
comment = `Since the value is less than 1, (${value} < 1), demand is inelastic.`;
is_Q = `Q is a necessary good`;
data = {
comment: comment,
is_Q: is_Q,
};
return data;
}
if (value > 1) {
comment = `Since the value is greater than 1, (${value} > 1), demand is elastic.`;
is_Q = `Q is a Luxury good`;
data = {
comment: comment,
is_Q: is_Q,
};
return data;
} else {
comment = `Since the value is equal to 1, (${value} = 1), demand is unitary`;
is_Q = `Demand for Q does not change in response to price.`;
data = {
comment: comment,
is_Q: is_Q,
};
return data;
}
}
function checkYED(value) {
var comment, elasticity, data;
if (value < 0) {
comment = `Since the value is less than 0, (${value} < 0). It is a necessary good.`;
elasticity = `Such that, Income Elasticity is <b>Low Income Elasticity</b> having <b>necessary goods</b> from Normal Goods.`;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
if (value > 0) {
comment = `Since the value is greater than 0, (${value} > 0). This is typical of a luxury or superior good.`;
elasticity = `Such that, Income Elasticity is <b>High Income Elasticity</b> having <b>luxury or superior goods</b> from Normal Goods.`;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
if (value == 0) {
comment = `Since the value is equal to 0, (${value} = 0). Proportional increase in price and goods.`;
elasticity = `Such that, Income Elasticity is <b>Unitary Income Elasticity</b> having no change.`;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
}
function checkXED(value, good1, good2) {
var comment, elasticity, data;
if (value < 1) {
comment = `Since the value is less than 1, (${value} < 1). It is Complementary Elasticity.`;
elasticity = `Such that, This means that when the price of ${good1} increases, the demand for ${good2} decreases. `;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
if (value > 1) {
comment = `Since the value is greater than 1, (${value} > 1). It is Subsitute Elasticity.`;
elasticity = `Such that, This means that when the price of ${good1} increases, the demand for ${good2} also increases. `;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
if (value == 1) {
comment = `Since the value is equal to 0, (${value} == 0). It is Unrelated Elasticity.`;
elasticity = `Such that, te price of ${good1} can increase by 100 percent, but it will create no effect on demand for ${good2}. `;
data = {
comment: comment,
elasticity: elasticity,
};
return data;
}
}
function calculatePED(derivative, paymentOfGoods1, quantity) {
// Find PED
console.log("");
console.log("####### PED #######");
var PED_formula = "(d*q / d * p) * p/q";
console.log(PED_formula);
console.log(derivative, paymentOfGoods1, quantity);
var PED_answer_string = `| ${derivative} * (${paymentOfGoods1} / ${quantity}) | `;
var PED_answer = derivative * (paymentOfGoods1 / quantity),
PED_answer = Math.abs(PED_answer).toPrecision(3);
console.log(PED_answer);
var PED_commentary = checkPED(PED_answer);
console.log(PED_commentary);
var PED_Data = {
PED_answer_string: PED_answer_string,
PED_formula: PED_formula,
PED_answer: PED_answer,
PED_commentary: PED_commentary,
};
return PED_Data;
}
function if2PED_Calc(expression, paymentOfGoods1, paymentOfGoods2, income) {
// Finding Q1
console.log("");
console.log("##### Finding Q1 #####");
var p1_replaced = variableReplacer(expression, "p1", paymentOfGoods1),
p1_p2_replaced = variableReplacer(p1_replaced, "p2", paymentOfGoods2),
y_p1_p2_replaced = variableReplacer(p1_p2_replaced, "y", income),
valueOf_Q1 = eval(y_p1_p2_replaced);
var p2_replaced = variableReplacer(expression, "p2", paymentOfGoods2),
y_p2_replaced = variableReplacer(p2_replaced, "y", income),
x_variable = variableReplacer(y_p2_replaced, "p1", "x");
console.log(y_p1_p2_replaced);
console.log(valueOf_Q1);
console.log("");
console.log("##### Finding Derivation #####");
// Finding Derivation == (dq1 / dp1 = d/dp1[expression])