add sin function

2020-10-25 16:54:08 +08:00 · 2020-10-25 16:54:08 +08:00 · 8978cd5f3f
commit 8978cd5f3f
parent e396b2321a
1 changed files with 5 additions and 1 deletions
--- a/index.html
+++ b/index.html
@ -29,10 +29,14 @@
  function abs(a) {
    return Math.abs(a);
  }
-  
+
  function cos(a) {
    return Math.cos(a)
  }
+
+  function sin(a) {
+    return Math.sin(a);
+  }
 </script>
 </body>
 </html>