From 1a78adbcfa24675f7c346ca18f031a3b2cfe04c3 Mon Sep 17 00:00:00 2001
From: wangheng <707428731@qq.com>
Date: Thu, 6 Aug 2020 18:22:45 +0800
Subject: [PATCH] d.java

---
 d.java | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 d.java

diff --git a/d.java b/d.java
new file mode 100644
index 0000000..957cbf2
--- /dev/null
+++ b/d.java
@@ -0,0 +1,23 @@
+public class d {
+    public static double angle(double a, String b) {
+        double c = Math.toRadians(a);
+        if (a % 180 == 0 && b.equals("sin")) {
+            return 0;
+        }
+        if (a % 90 == 0 && a % 180 != 0 && b.equals("cos")) {
+            return 0;
+        }
+
+        switch (b) {
+            case "cos":
+                return Math.cos(c);
+            case "sin":
+                return Math.sin(c);
+            case "tan":
+                return Math.tan(c);
+            case "cot":
+                return 1 / Math.tan(c);
+        }
+        return -1;
+    }
+}