1 − 2 + 4 − 8 + ⋯ 1 − 2 + 4 − 8 + ⋯ In mathematics, is the infinite series whose terms are the successive powers of two with alternating signs. As a geometric series, it is characterized by its first term, 1, and its common ratio, −2. As a series of real numbers it diverges, so in the usual sense it has no sum. In a much broader sense, the series has a generalized sum of . Gottfried Leibniz considered the divergent alternating series as early as 1673. He argued that by subtracting either on the left or on the right, one could produce
Wait a Minim! The U.S. cast included Sarah Atkinson, Kendrew Lascelles, Michel Martel, April Olrich, Nigel Pegram, Andrew Tracey, Paul Tracey, and Dana Valery. It was directed by Leon Gluckman and choreographed by Frank Staff and Kendrew Lascelles. Scenic design was by Gluckman and Frank Rembach, costume design by Heather Macdonald-Rouse, and lighting design by Rembach and Gluckman. Guitar, drums and other instruments were played by Andrew Tracey, Paul Tracey and Nigel Pegram, and trumpet by Kendrew Lascelles. Other members of the cast played percussion instruments. London recording Broadway recording South Africa recording Wait a Minim! Wait a Minim! (1962-68) was a musical