Update furuta.jl

src/interface_implementations/furuta.jl

@@ -78,7 +78,8 @@ bias(p::AbstractFuruta)        = p.bias
 
 function control(p::AbstractFuruta, u::AbstractArray)
     length(u) == 1 || error("Process $(typeof(p)) only accepts one control signal, tried to send u=$u.")
-    control(p,u[1])
+    a::Float64 = -1.4*u[1]
+    control(p,a)
 end
 
 control(p::AbstractFuruta, u::Number) = send(p.control,u)