mathmate/calculetor.html at main · TechEruption/mathmate · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Beautiful Calculator</title>
  <style>
    html {
      height: 100%;
    }
    body {
      background: url('http://cdn.wallpapersafari.com/58/14/NQODey.jpg');
      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;
      text-align: center;
      font-family: Arial, sans-serif;
    }
    #calculator {
      margin: 3em auto;
      background: linear-gradient(to right, #4e54c8, #8f94fb);
      width: 280px;
      padding: 20px;
      border-radius: 20px;
      border: solid black 2px;
      box-shadow: -8px 10px 15px rgba(0,0,0,0.6);
    }
    #display {
      color: #fff;
      margin-bottom: 20px;
      background:#222;
      height: 55px;
      width: 100%;
      border: solid 2px #0c0c0c;
      border-radius: 8px;
      box-shadow: inset 0px 0px 5px rgba(0,0,0,0.8);
      text-align: right;
      font-size: 22px;
      padding: 10px;
    }
    .keys {
      background-color: #f1f1f1;
      width: 20%;
      margin: 5px;
      font-size: 18px;
      outline: none;
      border: none;
      padding: 10px;
      box-shadow: 0px 2px 3px rgba(0,0,0,0.3);
      border-radius: 10px;
      cursor: pointer;
      transition: 0.2s;
    }
    .keys:hover {
      background-color: #ddd;
    }
    #pink {
      background: #ff6a6a;
      color: white;
    }
    #equal {
      background: #4CAF50;
      color: white;
    }
  </style>
</head>
<body>
  <div id="calculator">
    <input type="text" id="display" readonly>
    <br>
    <button class="keys" onclick="toScreen('7')">7</button>
    <button class="keys" onclick="toScreen('8')">8</button>
    <button class="keys" onclick="toScreen('9')">9</button>
    <button class="keys" onclick="toScreen('/')">÷</button>
    <br>
    <button class="keys" onclick="toScreen('4')">4</button>
    <button class="keys" onclick="toScreen('5')">5</button>
    <button class="keys" onclick="toScreen('6')">6</button>
    <button class="keys" onclick="toScreen('*')">×</button>
    <br>
    <button class="keys" onclick="toScreen('1')">1</button>
    <button class="keys" onclick="toScreen('2')">2</button>
    <button class="keys" onclick="toScreen('3')">3</button>
    <button class="keys" onclick="toScreen('-')">−</button>
    <br>
    <button class="keys" onclick="toScreen('0')">0</button>
    <button class="keys" onclick="toScreen('.')">.</button>
    <button id="equal" class="keys" onclick="answer()">=</button>
    <button class="keys" onclick="toScreen('+')">+</button>
    <br>
    <button id="pink" class="keys" onclick="toScreen('c')">C</button>
    <button class="keys" onclick="backspace()">⌫</button>
    <button class="keys" onclick="percent()">%</button>
    <button class="keys" onclick="power()">x²</button>
  </div>

  <script>
    var display = document.getElementById('display');

    function toScreen(x){
      if(x === 'c'){
        display.value = '';
      } else {
        display.value += x;
      }
    }

    function answer() {
      try {
        display.value = eval(display.value);
      } catch {
        display.value = "Error";
      }
    }

    function power(){
      try {
        display.value = eval(display.value * display.value);
      } catch {
        display.value = "Error";
      }
    }

    function percent(){
      try {
        display.value = eval(display.value / 100);
      } catch {
        display.value = "Error";
      }
    }

    function backspace() {
      display.value = display.value.slice(0, -1);
    }
  </script>
</body>
</html>