# hw1 - Department of Electrical Engineering and Computer...

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Department of Electrical Engineering and Computer Science EEL 3470 Electromagnetic Fields Homework Set No. 1 Please turn in your answers, MatLab files and results. Each group should turn in ONLY one set of homework. Print these pages and write your answers. After that, attach your MatLab files and results. Names: __________________ ___________________ ___________________ Problem 1. (1) Lonngren 1.1.1; (2) Lonngren 1.1.2; (also illustrate ) (3) Find the angle between vectors A and B . Answer: (1) (2) (3) Problem 2. (1) Find the area of triangle PQS where P, Q, and S are at (1, -2, 3), (-4, 2,5) and (2,1,-4), also illustrate the triangle; (2) Find the three inner angles of this triangle; (3) Find the vertical distance from point S to line PQ; (4) Find a unit vector that is perpendicular to triangle PQS; (5) Find the length of the perimeter of the triangle; (6) If E is the midpoint between P and Q, find the unit vector from S to E; (7) If point D is at (0,0,1), find the volume of the tetrahedral PQSD. Answer: (1)

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## This note was uploaded on 11/20/2011 for the course EEL 3740 taught by Professor Wu during the Fall '11 term at University of Central Florida.

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hw1 - Department of Electrical Engineering and Computer...

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