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Unformatted text preview: ECE 493 HW #9 Version 1.21 January 27, 2011 Spring 2011 Univ. of Illinois Due Tu, Feb. 1 Prof. Allen Topic of this homework: Analytic functions: Integration of analytic functions; Cauchy integral formula; Riemann Sheets and Branch cuts; Region of Convergence; inverse Laplace transforms; Deliverable: Show your work. In this homework i =  1. 1. Ordering complex numbers One can always say that 3 > 4, namely that real numbers have order . We will explore if complex numbers have order. Let z = x + iy be a complex number. (a) Can you define a meaning to  z 1  >  z 2  ? (b) How about  z 1 + z 2  > 3? (c) If z and w are complex numbers, define the meaning of z > w . 2. Analytic functions: State the regions where the following functions are analytic (Note: Im not asking you to apply the CR conditions, just state the region. Try to expand the function is a power series, and then look for the ROC. Consider also the expansion of df ( z ) /dz ....
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This note was uploaded on 03/28/2011 for the course ECE ECE 493 taught by Professor Jontb.allen during the Spring '11 term at University of Illinois at Urbana–Champaign.
 Spring '11
 JontB.Allen

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