quiz01_1 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department...

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MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Civil and Environmental Engineering 1.017 Computing and Data Analysis for Environmental Applications Quiz 1 (Solutions) Thursday, October 4, 2001 Please answer all questions on a separate piece(s) of paper with your name clearly indentified: Problem 1 (15 points) Suppose a = [ 6 7 -1 9 3] b = [-3 12 7 11 -2] Evaluate the following expressions … i) b>0 ii) a(b>0) iii) find(((a>b)&(b<0))|(a>5)) Problem 2 (15 points) Write the output of the following MATLAB script in the proper order, proceeding downward from the first line of output as it would appear on the command window screen: a=[1 2]; for i=1:3:9 a=2.*a-3; if(a<-4) flag=1; else flag=0; end result=[a, flag] end Problem 3 (15 points) Identify errors in the following MATLAB program and write a revised version with these errors corrected. 1
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function main a= [0.2 0.5] b=3*ones(2,1) x=subfunc(a.*b) return function subfunc(a) x=sin(2*pi*a); return Problem 4 (25 points) Suppose that you are given a two dimensional array called
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This note was uploaded on 11/29/2011 for the course CIVIL 1.00 taught by Professor Georgekocur during the Spring '05 term at MIT.

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quiz01_1 - MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department...

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