Add files via upload

ngmurphy · Apr 25, 2024 · 627a9b1 · 627a9b1
commit 627a9b1
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diff --git a/Lab11/index.html b/Lab11/index.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<title>Nathan's Calculator</title>
+<link rel="stylesheet" href="style.css">
+</head>
+<body>
+<div class="calculator">
+    <div class="display"><input type="text" id="display" disabled></div>
+    <div class="buttons">
+        <button onclick="clearDisplay()">C</button>
+        <button onclick="pressButton('/')">/</button>
+        <button onclick="pressButton('%')">%</button>
+        <button onclick="pressButton('√')">√</button>
+        <button onclick="pressButton('7')">7</button>
+        <button onclick="pressButton('8')">8</button>
+        <button onclick="pressButton('9')">9</button>
+        <button onclick="pressButton('*')">*</button>
+        <button onclick="pressButton('4')">4</button>
+        <button onclick="pressButton('5')">5</button>
+        <button onclick="pressButton('6')">6</button>
+        <button onclick="pressButton('-')">-</button>
+        <button onclick="pressButton('1')">1</button>
+        <button onclick="pressButton('2')">2</button>
+        <button onclick="pressButton('3')">3</button>
+        <button onclick="pressButton('+')">+</button>
+        <button onclick="pressButton('0')">0</button>
+        <button onclick="pressButton('.')">.</button>
+        <button onclick="calculateResult()">=</button>
+    </div>
+</div>
+<script src="script.js"></script>
+</body>
+</html>
diff --git a/Lab11/script.js b/Lab11/script.js
@@ -0,0 +1,68 @@
+var currentInput = '';
+
+function pressButton(buttonValue) {
+    var displayElement = document.getElementById('display');
+
+    if (['+', '-', '*', '/'].indexOf(buttonValue) !== -1) 
+    {
+        if (currentInput !== '' && ['+', '-', '*', '/'].indexOf(currentInput.slice(-1)) !== -1) 
+        {
+            currentInput = currentInput.slice(0, -1) + buttonValue;
+        } 
+        else 
+        {
+            currentInput += buttonValue;
+        }
+    } else if (buttonValue === '.' && (currentInput === '' || isNaN(currentInput.slice(-1))))
+    {
+        currentInput += '0.';
+    } 
+    else if (buttonValue === '.' && currentInput.includes('.') && !currentInput.slice(currentInput.lastIndexOf('.')).includes('+') && !currentInput.slice(currentInput.lastIndexOf('.')).includes('-') && !currentInput.slice(currentInput.lastIndexOf('.')).includes('*') && !currentInput.slice(currentInput.lastIndexOf('.')).includes('/')) 
+    {
+        return;
+    } 
+    else 
+    {
+        currentInput += buttonValue;
+    }
+    displayElement.value = currentInput;
+}
+
+function clearDisplay() 
+{
+    currentInput = '';
+    document.getElementById('display').value = '';
+}
+
+function calculateResult() {
+    var displayElement = document.getElementById('display');
+    if (['+', '-', '*', '/'].indexOf(currentInput.slice(-1)) !== -1)
+    {
+        currentInput = currentInput.slice(0, -1);
+    }
+
+    try 
+    {
+        currentInput = currentInput.replace(/√/g, 'Math.sqrt').replace(/%/g, '/100');
+        var result = eval(currentInput);
+        if (result > 9999999999) 
+        {
+            throw new Error('Overflow');
+        }
+        else if(result < -9999999999)
+        {
+            throw new Error('Underflow');
+        }
+        if (result.toString().indexOf('.') !== -1 && result.toString().split('.')[0].length > 10) 
+        {
+            throw new Error('Overflow');
+        }
+        displayElement.value = result;
+        currentInput = result.toString();
+    } 
+    catch (error) 
+    {
+        displayElement.value = error.message;
+        currentInput = '';
+    }
+}
diff --git a/Lab11/style.css b/Lab11/style.css
@@ -0,0 +1,38 @@
+body {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+    background-color: #f0f0f0;
+}
+
+.calculator {
+    width: 300px;
+    border: 1px solid #888;
+    background-color: #fff;
+}
+
+.display {
+    background-color: #e0e0e0;
+    padding: 10px;
+}
+
+.display input {
+    width: 100%;
+    border: none;
+    background: none;
+    text-align: right;
+    font-size: 2em;
+}
+
+.buttons button {
+    width: 20%;
+    padding: 20px;
+    border: 1px solid #888;
+    font-size: 1.5em;
+    background-color: #f9f9f9;
+}
+
+.buttons button:hover {
+    background-color: #ddd;
+}