We shall introduce the theta functions by considering a specific heat conduction problem. The reader who is unfamiliar with the details of the following argument should return to this section in due course and, meanwhile, accept equations (1.1.8) and (1.1.12) as definitions of the theta functions θ 1 and θ 4 respectively.
KeywordsTheta Function Heat Conduction Equation Infinite Series Transformation Equation Half Period
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