Add some basic handling of powers that are non-integers

programaker · Mar 15, 2010 · 9d816ee · 9d816ee
1 parent f43e83b
commit 9d816ee
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/ikj/main/ioke/lang/Number.java b/src/ikj/main/ioke/lang/Number.java
@@ -12,6 +12,7 @@
 import java.util.Map;
 
 import gnu.math.Complex;
+import gnu.math.DFloNum;
 import gnu.math.BitOps;
 import gnu.math.IntNum;
 import gnu.math.RatNum;
@@ -536,7 +537,11 @@ public Object activate(IokeObject method, Object on, List<Object> args, Map<Stri
                     IokeData data = IokeObject.data(arg);
 
                     if(!(data instanceof Number)) {
-                        arg = IokeObject.convertToRational(arg, message, context, true);
+                        if(data instanceof Decimal) {
+                            return context.runtime.newDecimal(((RealNum)(Complex.power(Number.value(on), new DFloNum(Decimal.value(arg).toString())))).asBigDecimal());
+                        } else {
+                            arg = IokeObject.convertToRational(arg, message, context, true);
+                        }
                     }
 
                     return context.runtime.newNumber((RatNum)Number.value(on).power(Number.intValue(arg)));

diff --git a/test/number_spec.ik b/test/number_spec.ik
@@ -456,6 +456,11 @@ describe(Number,
         (2 ** 40) should == 1099511627776
       )
 
+      it("should be able to raise a number to a decimal number",
+        (4 ** 0.5) should == 2
+        (124 ** 2.3) should be close(65293.4889760738)
+      )
+
       it("should convert its argument to a rational if its not a number or a decimal",
         x = Origin mimic
         x asRational = method(3)