lib/cumo/narray/extra.rb in cumo-0.3.0 vs lib/cumo/narray/extra.rb in cumo-0.3.1

@@ -1131,9 +1131,12 @@
     # @param b [Cumo::NArray]
     # @return [Cumo::NArray]  return dot product
 
     def dot(b)
       t = self.class::UPCAST[b.class]
+      if self.ndim == 0 and b.ndim == 0
+        return self * b
+      end
       if [SFloat, DFloat, SComplex, DComplex].include?(t)
         b = self.class.asarray(b)
         case self.ndim
         when 1
           case b.ndim