ばいおりんの慣性系相対性理論

プログラムの内容：

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UFT-8">
<meta name="Viewpoint" content="width=device-width,initial-scale-1.0">
<style>
   section {
      margin-left: 14px;
      margin-right: 14px;
           }
</style>
<script>

document.querySelector("button").addEventListener("click", function() {
   document.frm.ans.value = "";
                                                                      });
function main() {
   str = "\n　"
   let A = [
         [ "yamada",160 ],
         [ "suzuki",180 ],
         [ "tanaka",170 ]
           ];

let B = new Array(3);
   for ( let i=0; i<3; i++ ) {
      B[i] = new Array(2);
      for ( let j=0; j<2; j++ ) {
         B[i][j] = 0;
                                }
                             }
   B[0][0] = "yamada";
   B[0][1] = 160;
   B[1][0] = "suzuki";
   B[1][1] = 180;
   B[2][0] = "tanaka";
   B[2][1] = 170;

for(C=[]; C.length<3;) C.push(Array(2));
   for ( i=0; i<3; i++ ) {
      for ( j=0; j<2; j++ ) {
         C[i][j] = 0;
                            }
                         }
   C[0][0] = "yamada";
   C[0][1] = 160;
   C[1][0] = "suzuki";
   C[1][1] = 180;
   C[2][0] = "tanaka";
   C[2][1] = 170;

for ( i=0; i<3; i++ ) {
      for ( j=0; j<2; j++ ) {
         if ( j == 0) {
            str += "( " + A[i][j] + ", ";
                     }
         else {
            str += A[i][j] + " )\n　";
              }
                            }
                         }
   str += "\n\n　"
   for ( let i=0; i<3; i++ ) {
      for ( let j=0; j<2; j++ ) {
         if ( j == 0) {
            str += "( " + B[i][j] + ", ";
                     }
         else {
            str += B[i][j] + " )\n　";
              }
                                }
                             }
   str += "\n\n　"
   for ( let i=0; i<3; i++ ) {
      for ( let j=0; j<2; j++ ) {
         if ( j == 0) {
            str += "( " + C[i][j] + ", ";
                     }
         else {
            str += C[i][j] + " )\n　";
              }
                                }
                             }
   str += "\n　"
   document.getElementById('ams').value = str;
               }

</script>
</script>
</head>
<body>
<section>
<form name="frm">
<input type="button" value="実行" onclick="main()">　<button>消去</button><br><br>
<Ｔextarea name="ans" id="ams" rows="18" cols="50"></Ｔextarea>
</form>