1 + 2 + 4 + 8 + ⋯ that and , but the underlying proofs demand careful thinking about the interpretation of endless sums. It is also possible to view this series as convergent in a number system different from the real numbers, namely, the 2-adic numbers. As a series of 2-adic numbers this series converges to the same sum, −1, as was derived above by analytic continuation. 1 + 2 + 4 + 8 + ⋯ In mathematics, is the infinite series whose terms are the successive powers of two. As a geometric series, it is characterized by its first term, 1, and its common ratio, 2.
Quavers bags were in a different layout, being in Landscape style. Quavers' logo was changed slightly, and the flavours remained the same. In 2009, Quavers, Squares, Wotsits and French Fries had all changed their packaging again because of a reduction in calories. Quavers has 87 calories (Currently 86) in the Cheese flavour. In 2011, Quavers packaging updated to a brighter bag colour with the Walkers logo on the packets again. The primary ingredient in Quavers is potato starch. They are deep fried to give a snack with a similar texture to Krupuk (prawn crackers), but have a different flavour and are