Scientific Calculator Source Code
Scientific Calculator Source Code
<![CDATA[
<html lang="en">
<head>
<meta charset="UTF-8"></meta>
<meta content="width=device-width, initial-scale=1.0" name="viewport"></meta>
<title>Scientific Calculator</title>
<style>
.calculator {
background: #444; /* Darker background color */
border: 2px solid #555; /* Dark border */
border-radius: 10px;
box-shadow: 0 5px 10px rgba(0,0,0,0.1);
max-width: 300px;
margin: auto;
padding: 20px;
}
input, button {
width: 50px;
height: 50px;
font-size: 20px;
margin: 5px;
border-radius: 5px;
border: 1px solid #666; /* Darker border */
}
input {
width: calc(100% - 20px);
padding: 10px;
font-size: 24px;
border: none;
border-radius: 5px;
text-align: right;
margin-bottom: 10px;
background-color: #555; /* Darker input background color */
color: #fff; /* Light text color */
}
button.C {
background-color: #FF5733;
color: white;
}
button.C:hover {
background-color: #E74C3C;
color: white;
cursor: pointer;
}
button:hover {
background-color: #666; /* Darker hover color */
color: #a52a2a; /* Brown text color */
cursor: pointer;
}
</style>
</head>
<body id="a">
<div class="calculator">
<input id="display" readonly="" type="text" />
<br />
<button onclick="appendFunction('Math.sqrt')">√</button>
<button onclick="appendFunction('Math.pow')">x<sup>y</sup></button>
<button onclick="appendFunction('Math.sin')">sin</button>
<button onclick="appendFunction('Math.cos')">cos</button>
<br />
<button onclick="appendFunction('Math.tan')">tan</button>
<button onclick="appendFunction('Math.log')">log</button>
<button onclick="appendFunction('Math.exp')">exp</button>
<button onclick="appendFunction('Math.PI')">π</button>
<br />
<button onclick="appendNumber('7')">7</button>
<button onclick="appendNumber('8')">8</button>
<button onclick="appendNumber('9')">9</button>
<button onclick="appendOperator('+')">+</button>
<br />
<button onclick="appendNumber('4')">4</button>
<button onclick="appendNumber('5')">5</button>
<button onclick="appendNumber('6')">6</button>
<button onclick="appendOperator('-')">-</button>
<br />
<button onclick="appendNumber('1')">1</button>
<button onclick="appendNumber('2')">2</button>
<button onclick="appendNumber('3')">3</button>
<button onclick="appendOperator('*')">*</button>
<br />
<button onclick="appendNumber('0')">0</button>
<button onclick="appendDecimal()">.</button>
<button onclick="calculateResult()">=</button>
<button onclick="appendOperator('/')">/</button>
<br />
<button onclick="backspace()">⌫</button>
<button onclick="calculatePercentage()">%</button>
<button onclick="appendBraces('(')"> ( </button>
<button onclick="appendBraces(')')"> ) </button>
<button class="C" onclick="clearDisplay()">C</button>
</div>
<script>
function appendNumber(number) {
document.getElementById('display').value += number;
}
function appendOperator(operator) {
document.getElementById('display').value += operator;
}
function appendDecimal() {
var displayValue = document.getElementById('display').value;
if (displayValue.indexOf('.') === -1) {
document.getElementById('display').value += '.';
}
}
function appendFunction(func) {
document.getElementById('display').value += func + '(';
}
function clearDisplay() {
document.getElementById('display').value = '';
}
function backspace() {
var displayValue = document.getElementById('display').value;
document.getElementById('display').value = displayValue.slice(0, -1);
}
function calculateResult() {
try {
var displayValue = document.getElementById('display').value;
var result = eval(displayValue);
document.getElementById('display').value = result;
} catch (error) {
document.getElementById('display').value = 'Error';
}
}
function calculatePercentage() {
var displayValue = document.getElementById('display').value;
document.getElementById('display').value = eval(displayValue + '/100');
}
function appendBraces(braces) {
document.getElementById('display').value += braces;
}
</script>
</body>
</html>
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