lib/dydx/function.rb in dydx-0.1.41421 vs lib/dydx/function.rb in dydx-0.2.7000000

@@ -8,9 +8,18 @@
     def <=(algebra)
       @algebra = algebra
       self
     end
 
+    def evalue(nums)
+      subst_hash = Hash[*[@vars, nums].transpose.flatten]
+      begin
+        @algebra.subst(subst_hash).to_f
+      rescue ArgumentError
+        eval(@algebra.subst(subst_hash).to_s)
+      end
+    end
+
     def differentiate(sym = :x)
       @algebra.differentiate(sym)
     end
     alias_method :d, :differentiate