From 6da1a71d3a64eddd9196d594895901e24c73109a Mon Sep 17 00:00:00 2001
From: fangchengyun <1227764354@qq.com>
Date: Thu, 6 Aug 2020 21:04:53 +0800
Subject: [PATCH] first commit

---
 d.java | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 d.java

diff --git a/d.java b/d.java
new file mode 100644
index 0000000..a6ea180
--- /dev/null
+++ b/d.java
@@ -0,0 +1,27 @@
+package ¼Ó¼õ³Ë³ý;
+import java.util.*;
+public class d {
+	String s;
+	double x;
+	public d(String s,double x)
+	{
+		this.s=s;
+		this.x=x;
+	}
+	public double sanjiao()
+	{
+		if (s.equals("sin")) return sin(x);
+		else if (s.equals("cos")) return cos(x);
+		else if (s.equals("tan")) return tan(x);
+		else if (s.equals("asin")) return asin(x);
+		else if (s.equals("acos")) return acos(x);
+		else if (s.equals("atan")) return atan(x);
+		else return Double.POSITIVE_INFINITY;
+	}
+	private double sin(double x) {return Math.sin(x);}
+	private double cos(double x) {return Math.cos(x);}
+	private double tan(double x) {return Math.tan(x);}
+	private double asin(double x) {return Math.asin(x);}
+	private double acos(double x) {return Math.acos(x);}
+	private double atan(double x) {return Math.atan(x);}
+}