계산기

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계산기

툴툴공구 2024. 3. 20. 09:39
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>공학용 계산기</title>
  <style>
    body {
      font-family: Arial, sans-serif;
    }
    .calculator {
      width: 300px;
      margin: 50px auto;
      padding: 20px;
      border: 1px solid #ccc;
      border-radius: 5px;
      background-color: #f9f9f9;
    }
    .calculator input {
      width: 100%;
      margin-bottom: 10px;
      padding: 10px;
      font-size: 16px;
      border-radius: 5px;
      border: 1px solid #ccc;
    }
    .calculator button {
      width: 100%;
      padding: 10px;
      font-size: 16px;
      border-radius: 5px;
      border: none;
      background-color: #007bff;
      color: #fff;
      cursor: pointer;
    }
    .calculator button:hover {
      background-color: #0056b3;
    }
  </style>
</head>
<body>
  <div class="calculator">
    <input type="text" id="input">
    <button onclick="clearInput()">C</button>
    <button onclick="appendToInput('(')">(</button>
    <button onclick="appendToInput(')')">)</button>
    <button onclick="appendToInput('^')">^</button>
    <button onclick="appendToInput('7')">7</button>
    <button onclick="appendToInput('8')">8</button>
    <button onclick="appendToInput('9')">9</button>
    <button onclick="appendToInput('/')">/</button>
    <button onclick="appendToInput('4')">4</button>
    <button onclick="appendToInput('5')">5</button>
    <button onclick="appendToInput('6')">6</button>
    <button onclick="appendToInput('*')">*</button>
    <button onclick="appendToInput('1')">1</button>
    <button onclick="appendToInput('2')">2</button>
    <button onclick="appendToInput('3')">3</button>
    <button onclick="appendToInput('-')">-</button>
    <button onclick="appendToInput('0')">0</button>
    <button onclick="appendToInput('.')">.</button>
    <button onclick="calculate()">=</button>
    <button onclick="appendToInput('+')">+</button>
    <button onclick="calculateSin()">sin</button>
    <button onclick="calculateCos()">cos</button>
    <button onclick="calculateTan()">tan</button>
    <button onclick="calculateSqrt()">sqrt</button>
  </div>

  <script>
    function clearInput() {
      document.getElementById('input').value = '';
    }

    function appendToInput(value) {
      document.getElementById('input').value += value;
    }

    function calculate() {
      try {
        const result = eval(document.getElementById('input').value);
        document.getElementById('input').value = result;
      } catch (error) {
        document.getElementById('input').value = 'Error';
      }
    }

    function calculateSin() {
      const value = document.getElementById('input').value;
      const result = Math.sin(eval(value));
      document.getElementById('input').value = result;
    }

    function calculateCos() {
      const value = document.getElementById('input').value;
      const result = Math.cos(eval(value));
      document.getElementById('input').value = result;
    }

    function calculateTan() {
      const value = document.getElementById('input').value;
      const result = Math.tan(eval(value));
      document.getElementById('input').value = result;
    }

    function calculateSqrt() {
      const value = document.getElementById('input').value;
      const result = Math.sqrt(eval(value));
      document.getElementById('input').value = result;
    }
  </script>
</body>
</html>