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index.html
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index.html
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<!DOCTYPE html>
<html>
<head>
<script src="calculator.js"></script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/mathjs/10.6.4/math.js"
integrity=
"sha512-BbVEDjbqdN3Eow8+empLMrJlxXRj5nEitiCAK5A1pUr66+jLVejo3PmjIaucRnjlB0P9R3rBUs3g5jXc8ti+fQ=="
crossorigin="anonymous"
referrerpolicy="no-referrer"></script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/mathjs/10.6.4/math.min.js"
integrity=
"sha512-iphNRh6dPbeuPGIrQbCdbBF/qcqadKWLa35YPVfMZMHBSI6PLJh1om2xCTWhpVpmUyb4IvVS9iYnnYMkleVXLA=="
crossorigin="anonymous"
referrerpolicy="no-referrer"></script>
<script src="calculator.js"
crossorigin="anonymous"
referrerpolicy="no-referrer"></script>
<!-- for styling -->
<link rel="stylesheet" href="style.css">
</head>
<!-- create table -->
<body>
<table id="calcu">
<tr>
<td colspan="3"><input type="text" id="result"></td>
<!-- clr() function will call clr to clear all value -->
<td><input type="button" value="c" onclick="clr()" /> </td>
</tr>
<tr>
<!-- create button and assign value to each button -->
<!-- dis("1") will call function dis to display value -->
<td><input type="button" value="1" onclick="dis('1')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="2" onclick="dis('2')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="3" onclick="dis('3')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="/" onclick="dis('/')"
onkeydown="myFunction(event)"> </td>
</tr>
<tr>
<td><input type="button" value="4" onclick="dis('4')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="5" onclick="dis('5')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="6" onclick="dis('6')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="*" onclick="dis('*')"
onkeydown="myFunction(event)"> </td>
</tr>
<tr>
<td><input type="button" value="7" onclick="dis('7')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="8" onclick="dis('8')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="9" onclick="dis('9')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="-" onclick="dis('-')"
onkeydown="myFunction(event)"> </td>
</tr>
<tr>
<td><input type="button" value="0" onclick="dis('0')"
onkeydown="myFunction(event)"> </td>
<td><input type="button" value="." onclick="dis('.')"
onkeydown="myFunction(event)"> </td>
<!-- solve function call function solve to evaluate value -->
<td><input type="button" value="=" onclick="solve()"> </td>
<td><input type="button" value="+" onclick="dis('+')"
onkeydown="myFunction(event)"> </td>
</tr>
</table>
</body>
</html>