Based on this review, would the user recommend this product? === Review: This book contains some standard topics treated on an elementary way. Unfortunatelly mathemathical formalism is almost left out.The approach to the subject is pretty popular.I think one is going to invest her/his own time in a better way by working first on V.I.Arnold's "Classical Mechanics" (symplectic formalism) then going on with E. Ott's "Chaos" (one of the best on the subject, but Lichtenberg-Liebermann is also a good one, in my opinion) and, finally, taking a look into some parts of Arnold's "Geometrical methods of ODE". More stuff is available on the Web (arxiv.org --> recent abstracts and new approaches on dynamical systems in Physics). This is a good way to gain a technical basis instead of a popular one. Answer:

Answer: No


Based on this review, would the user recommend this product? === Review: This book is a waste of money, there's almost nothing in it. It reminds me of the terrible "Presenting C#" book (although I will grant that it is much more accurate).Any other C# book is a much better buy. For example, if you want a quick treatment get "C# Essentials" from O'Reilly. For learning C#, get Archer, Liberty or Gunnerson. For a complete application oriented book get Troelsen. Answer:

Answer: No


Based on this review, would the user recommend this product? === Review: I was searching for cat balls that had catnip in them. I have been and am still searching for a certain catnip ball and have been unable to find. When I saw these balls I decided to buy and see how my cats liked them. I was disappointed to see they did not have catnip in them. At first my cats were not very interested but since then they have enjoyed rolling them around our hardwood floor and carrying them in their mouths even to play on the bed with them. I realized today that one has broken on the inside but the outside material has not been ripped yet. I am rating 4 stars since my cats love them but not 5 stars since no catnip in them. We have had the balls about 1 1/2 months. Answer:

Answer: Yes


Based on this review, would the user recommend this product? === Review: The cat door is well made and easy to install. I strongly suggest pulling the target door off it's hinges to do the install, that makes it a lot easier.My only real issue with the door, is you can only control cats coming back into the house by the collar and not going out also. I have 2 indoor cats allowed into the garage but not outside; one cat that is allowed in the house, garage, or outside; and one only allowed into the garage or outside. I wanted to use the door to control access into and out of my garage from the outside. But this door while keeping out strays like a champ, can't keep the 2 always indoor cats from going outside the garage. So, I used it to control access from the garage back into the main house and am ordering a different door for the outside door of the garage to control access out of the garage and back into the garage. Answer:

Answer: