[Mono-bugs] [Bug 44238][Wis] Changed - Math.Tan() returning incorrect results

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Changed by jason@379.com.

http://bugzilla.ximian.com/show_bug.cgi?id=44238

--- shadow/44238	Fri Jun  6 12:32:24 2003
+++ shadow/44238.tmp.6872	Mon Jun  9 10:34:52 2003
@@ -55,6 +55,30 @@
 tan (p)
 tan (0)
 
 Does this happen with the other trig functions?
 Is mono able to roundtrip all numbers in [0, p/2) with the following:
 arctan (tan ( theta))?
+
+------- Additional Comments From jason@379.com  2003-06-09 10:34 -------
+I can make this easier: Mono's Math.Tan() always returns 1.0 no 
+matter what you pass in. I tried this code:
+
+  using System;
+  public class MathTest {
+    static void Main(string[] args) {
+      double v = (args[0]=="PI") ? Math.PI : double.Parse(args[0]);
+      double r = Math.Tan(v);
+      Console.WriteLine(r);
+      if (r == 1.0) Console.WriteLine("failed");
+    }
+  }
+
+With values like PI, 0, 1, 1.128, etc.
+ 
+Built with mcs, run on Mono: always 1.0
+Built with csc, run on Mono: always 1.0
+Built with mcs, run on .NET: returns correct values
+Built with csc, run on .NET: returns correct values
+
+Sin() and Cos() return correct values on both Mono and .NET.
+