commit f0f24bca953ba5ccec3b37dbb0998bd639c03e77
Author: xyh <447767881@qq.com>
Date:   Thu Aug 6 21:48:07 2020 +0800

    trigonometric_function.java

diff --git a/trigonometric_function.java b/trigonometric_function.java
new file mode 100644
index 0000000..377d7ba
--- /dev/null
+++ b/trigonometric_function.java
@@ -0,0 +1,12 @@
+public double mysin(double x) {
+		return Math.sin(x);
+	}
+	
+	public double mycos(double x) {
+		return Math.cos(x);
+	}
+	
+	public double mytan(double x) {
+		return Math.tan(x);
+	}
+