checkpoint

[anneal.git] / src / edu / berkeley / qfat / geom / Matrix.java

diff --git a/src/edu/berkeley/qfat/geom/Matrix.java b/src/edu/berkeley/qfat/geom/Matrix.java
index a00eb4a..19e1a9a 100644 (file)
--- a/src/edu/berkeley/qfat/geom/Matrix.java
+++ b/src/edu/berkeley/qfat/geom/Matrix.java
@@ -222,4 +222,54 @@ public class Matrix {
             .times(1/determinant);
     }
 
+    public String toString() {
+        return
+            "\n [ " + a + "\t" + b + "\t" + c + "\t" + d + "\t" + "]" + 
+            "\n [ " + e + "\t" + f + "\t" + g + "\t" + h + "\t" + "]" + 
+            "\n [ " + i + "\t" + j + "\t" + k + "\t" + l + "\t" + "]" + 
+            "\n [ " + m + "\t" + n + "\t" + o + "\t" + p + "\t" + "]\n";
+    }
+
+    public boolean equals(Object oo) {
+        if (oo==null) return false;
+        if (!(oo instanceof Matrix)) return false;
+        Matrix z = (Matrix)oo;
+        return
+            a==z.a && 
+            b==z.b && 
+            c==z.c && 
+            d==z.d && 
+            e==z.e && 
+            f==z.f && 
+            g==z.g && 
+            h==z.h && 
+            i==z.i && 
+            j==z.j && 
+            k==z.k && 
+            l==z.l && 
+            m==z.m && 
+            n==z.n && 
+            o==z.o && 
+            p==z.p;
+    }
+
+    public int hashCode() {
+        return
+            Float.floatToIntBits(a) ^
+            Float.floatToIntBits(b) ^
+            Float.floatToIntBits(c) ^
+            Float.floatToIntBits(d) ^
+            Float.floatToIntBits(e) ^
+            Float.floatToIntBits(f) ^
+            Float.floatToIntBits(g) ^
+            Float.floatToIntBits(h) ^
+            Float.floatToIntBits(i) ^
+            Float.floatToIntBits(j) ^
+            Float.floatToIntBits(k) ^
+            Float.floatToIntBits(l) ^
+            Float.floatToIntBits(m) ^
+            Float.floatToIntBits(n) ^
+            Float.floatToIntBits(o) ^
+            Float.floatToIntBits(p);
+    }
 }