1. Calculus: An Intuitive and Physical Approach (Second Edition) (Dover Books on Mathematics)
- For dummies
2. The Humongous Book of Calculus Problems (Humongous Books)
- Upgraded version of high-frequency vibration design: with a high-intensity frequency of up to 12,000 beats/min, it can easily and effectively shatter stubborn tartar stains even in the most difficult areas. it reduces the damage to enamel and gums caused by manual dental tools.
- Led lights and 3 modes: the led lighting helps you better see dental stains on the surface of your teeth;3 different modes (soft, normal, strong) are suitable for different gingival sensitivities. usb charging and high power output. built-in 300 mah lithium-ion battery, a full charge can be used for more than 20 days.
- Dental care: if you smoke or drink coffee or wine for a long time, your teeth are prone to unhealthy conditions such as dental calculus and stains. pointed and flat cleaning heads are used to remove tartar, calculus, and plaque from the surface of teeth. reduce the number of times you visit the dentist.
- Professional medical tooth cleaning kit: ip67 waterproof body design, handheld portable size suitable for travel. 2 different small metalheads can effectively scan the deep blind area of the teeth. with the addition of an oral mirror and 2 dental cleaners, you can enjoy the pleasure of cleaning your teeth at home anytime and anywhere.
- Healthy materials: the tartar removal cleaner is made of food-grade silicone and professional medical metal. ergonomic 2-piece replacement head for your family, loved and even pets to provide oral care. the electric dental tartar remover can clean up to 2x as effective around implants compare to traditional string floss.
3. Infinite Powers: How Calculus Reveals the Secrets of the Universe
- Manufacturerâ€™s warranty only when purchased from the great courses
5. Essential Calculus Skills Practice Workbook with Full Solutions
- Used book in good condition