Details Title: Advance Computer Methods Description: ME 303 Binghamton University Total Flash Cards: 7 Created: 05/15/2008 06:26:28		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Engineering Flashcards
Cards in this set: Term fzero(?) Definition (@function,xo)     xo  is an initial guess Note: xo could be a range (eg. [0 3]) Term A= [ 10 X 10 ];   A(:,5)=? Definition 10 values for the 5th column Term solve for the following using MATLAB: y= x^5 + 3x^3 - 2*x^2 + 3 when y = 0, x = ? Definition roots([ 1 0 3 -2 0 3]) Term Write a short MATLAB script (program) that uses a while loop to divide the variable x by 2 until the value of x is less than 1.0e-6. The program should also count the number of times x was divided by 2. Before starting the while loop set x = 1. Definition  x = 1; i = 0;  while x >=1e-6    x = x/2;    i = i + 1;  end Term (7 pts) Write a MATLAB function m-file called prob5 that requires two input vectors x and y (with the same number of elements) and outputs two scalar values a and b, where a is the intercept and b is the slope from linear least-squares regression. Use the MATLAB polyfit command to determine a and b inside your function Definition function [a, b] = prob5(x, y) p = polyfit(x, y, 1); b = p(1); a = p(2); Term (6 pts) Use your function from question 5) above to fit data given in vectors x and y to a power-law of the form: Assume that x and y have been entered already in the MATLAB command window. Just write out the required statements to compute A and B using your function prob5. Definition [a, b] = prob5(log10(x), log10(y)) B = b A = 10^a Term If x = [1 2 3 4] and y = [0 1 4 9]. Write a MATLAB program that will determine the coefficients for polynomial interpolation (i.e., the polynomial that passes through the data points exactly). Definition polyfit(x, y, 3)