V3

V3 or V03 may refer to:

• Mandibular nerve, (V₃), the third division of the trigeminal nerve
• ATC code V03, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Area V3 of the visual cortex

The Hanlin is an e-Reader, an electronic book (e-book) reading device. The Hanlin v3 features a 6" (15 cm), 4-level grayscale electrophoretic display (E Ink material) with a resolution of 600×800 pixels (167 ppi), while the v3+ features a 16-level grayscale display. The Hanlin v5 Mini, features a 5" (15 cm), 8-level grayscale electrophoretic display (E Ink material) with a resolution of 600×800 pixels (200 ppi). The device runs a Linux-based OS.

The square root of 3 is the positive real number that, when multiplied by itself, gives the number 3. It is more precisely called the principal square root of 3, to distinguish it from the negative number with the same property. It is denoted by