HW7_F11

# HW7_F11 - Homework 7 Geog210a Due Problems from text(check using MATLAB when appropriate 12.6.4 12.6.6 12.6.10 12.6.12 Chap12 review 14 10.1.13

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Homework 7 Geog210a Due: November 18, 2011 Problems from text (check using MATLAB when appropriate): 12.6.4, 12.6.6, 12.6.10, 12.6.12, Chap12 review problems 11, 12, 14, 10.1.13, 10.1.17, 10.1.22, 10.1.25, 10.2.3, 10.2.5, 10.2.12, 10.2.17, 10.3.1, 10.3.5, 10.3.6, 10.3.9 DV Problems: 1. Solve these systems of linear equation using Gaussian elimination. Please solve these by hand and check your answers using MATLAB. a. 6 x + 2 y + 7 z = 13 -3 y + 5 z = 5 2 x - y + z = 3 b. 3x 1 + 2x 2 - 2 x 3 - 2x 4 = -3 2x 1 + x 2 - x 4 = -1 -x 1 – 2 x 3 + x 4 = 1 -2x 1 - x 2 + 3 x 3 - x 4 = -3 2. Waldo has been asked you fit a quadratic trend surface for the elevation data given below. Waldo seems to think that a model of the form, h(x,y) = a + b x + c y + d x 2 + e y 2 + f x y , will work well where h(x,y) is in feet and x and y in miles. BTW, the data locations for the elevation observations were largely based on the location of pubs. x (miles)

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## This note was uploaded on 12/28/2011 for the course GEOG 210a taught by Professor Davey during the Fall '09 term at UCSB.

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HW7_F11 - Homework 7 Geog210a Due Problems from text(check using MATLAB when appropriate 12.6.4 12.6.6 12.6.10 12.6.12 Chap12 review 14 10.1.13

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