Considered to be the largest settled trading center in the pre-Columbian area of the present-day United States was the city of
As a result of Pontiac’s Rebellion in 1763, the British auth…
As a result of Pontiac’s Rebellion in 1763, the British authorities ________________________________________.
Meeting in New York in 1765, the Stamp Act Congress called f…
Meeting in New York in 1765, the Stamp Act Congress called for the ___________________________________.
Write a script that includes (at bottom) any functions you w…
Write a script that includes (at bottom) any functions you write (if any) and that uses Linear Regression to fit a line onto the given data fit a cubic (degree 3) polynomial onto the given data report results as discussed below plot results as discussed below Description of data: the x variable is displacement. The y variable is force for a “stiffening spring” that stiffens as it displaces. It is not exactly linear in the force vs. displacement. Let’s find out. Things to report. Sum of squares of residuals (from mean) Sum of squares of residuals (from line fit) Sum of squares of residuals (from cubic fit) coefficient of determination (line) coefficient of determination (cubic) Things to plot Raw data, use ‘o’ Show y average, use ‘r’ Show the linear fit line, use ‘g’ Show the cubic fit line, use ‘b’ Data (cut and paste this data) x data (independent) 56789101112131415161718192021222324252627282930 y data (dependent) 812.07968.251128.11305.21459.71625.81825.520592212.92414.62569.62903.23035.63319.23436.43904.24168.84241.64635.24809.45336.15592.55950.46067.964437411.3
What is the following code doing? global DEBUG;DEBUG=true;…
What is the following code doing? global DEBUG;DEBUG=true;A=;b=;P = ;A = P*A;b = P*b;n = 3;debug_mat(“A: “, A);debug_mat(“b: “, b);C = A;for k=1:n C(k,k) = 0; x(k,1) = 0; epsilon_a(k,1) = 1;endfor k=1:n C(k,1:n) = C(k,1:n)/A(k,k); d(k) = b(k)/A(k,k);enddebug_mat(“x: “, x);debug_mat(“C: “, C);debug_mat(“d: “, d);show = ;% from book, Fig 12.2, es=0.00001% is 0.0000001% called the ‘stop criterion’book_es = 0.0000001;for iter=1:50 % an nx1 column vector; should b zeros! e = A*x – b; % Griffis Method: a little looser bound; cheat a little here % this is also nx1 column vector of “err” bounds err = ((n+1)*abs(A)*abs(x)+abs(b))*eps; err_subm = (norm(A,1)*norm(x,1)+norm(b,1))*eps; % important tests! UNDERSTAND what these say. x_is_floating_pt_valid = norm(e,1) ‘, repmat(‘%8.16f ‘, 1, n), ‘\n’]; fprintf(“%s\n”, entry); fprintf(fmt1, A’); fprintf(“\n”);end
This question concerns the coefficient of determination, of…
This question concerns the coefficient of determination, of a linear regression of some raw data that is thought to depend on some raw data. Consider that any fit we try to do gives an improvement over the straight average of the data. How is bounded?
Say is the square matrix,
Say is the square matrix,
Say you have two equations
Say you have two equations
Iterative Methods—non-Linear ——————————-…
Iterative Methods—non-Linear ————————————–
Gauss-Seidel can easily solve for a vector
Gauss-Seidel can easily solve for a vector