The Fourier series expansion for a rectangular pulse wave with period T and pulse time Ï is. Note that, for symmetry, the starting time (t = 0) in this expansion is halfway through the first pulse. The phase can be offset to match the accompanying graph by replacing t with t - Ï/2.he Fourier series expansion for a rectangular pulse wave with period T and pulse time Ï is. Note that, for symmetry, the starting time (t = 0) in this expansion is halfway through the first pulse. The phase can be offset to match the accompanying graph by replacing t with t - Ï/2.
Jupiterimages/Goodshoot/Getty Images. Chai is an Indian spiced milk and tea drink that can be served either hot or cold. Other names for chai tea are chai latte and masala chai. It is traditionally made with a variety of spices that include cardamom, cinnamon and cloves. These spices are stewed and then steeped with black tea. Depending on your taste, there are several different spices that you can put in your chai.
However, elsewhere in the world, ordering a 'chai' (rather than a 'masala chai,' or ' spice tea ') can result in a totally different cup of tea. This is because 'chai' is the word for 'tea' in Hindi and many other languages in India and the surrounding countries.n North America, chai spices are becoming popular flavors in tea chocolates and other confections, and the dirty chai is becoming a popular tea-espresso drink. Other North American variations on chai include iced chai and unconventionally flavored chai, like peppermint chai and chocolate chai.