5.20 a b c d plz
dont copy others
this is just all of question
please see the attachment.
5.20 a b c d plz dont copy others this is just all of question 129...
I need help with question 30d
16. y = 0 (that is, y(x) = 0 for all x, also written y(x) = 0) is a solution of (2) (not of (1) if (x) • o , called the trivial solution 17. The sum of a solution of (1) and a solution of (2) is a solution of (1). 18. The difference of two solutions of (1) is a solution of (2). 19. If yı is a solution of (1), what...
For the cubic equation
, where a, b, c and d are real input coefficients. Write a
MATLAB function root.m of the form:
function [largestRoot] = root(a, b, c, d)
% a: Coefficient of x^3
% b: Coefficient of x^2
% c: Coefficient of x
% d: Coefficient of 1
% largestRoot: The largest real root of the cubic
to find the largest real root of this equation accurate
to within a relative error
using any methods such as Newton's,...
please help me to solve part b and c .
and please dont copy my answer in part a and then post it as
an answer.
thanks
Consider two separate linear regression models and For concreteness, assume that the vector yi contains observations on the wealth ofn randomly selected individuals in Australia and y2 contains observations on the wealth of n randomly selected individuals in New Zealand. The matrix Xi contains n observations on ki explanatory variables which are believed...
I have all of the answers to this can someone just actually
explain this matlab code and the results to me so i can get a
better understanding?
b)
(c) and (d)
%% Matlab code %%
clc;
close all;
clear all;
format long;
f=@(t,y)y*(1-y);
y(1)=0.01;
%%%% Exact solution
[t1 y1]=ode45(f,[0 9],y(1));
figure;
plot(t1,y1,'*');
hold on
% Eular therom
M=[32 64 128];
T=9;
fprintf(' M Max error \n' );
for n=1:length(M)
k=T/M(n);
t=0:k:T;
for h=1:length(t)-1
y(h+1)=y(h)+k*f(t(h),y(h));
end
plot(t,y);
hold on
%%%...
2. Consider the following 1-D wave equation with initial condition u (x, 0)- F (x) where F(x) is a given function. a) Show that u (x, t)-F (x - t) is a solution to the given PDE. b) If the function F is given as 1; x< 10 x > 10 u(x, 0) = F(x) = use part (a) to write the solution u(x, t) c) Sketch u(x,0) and u(x,1) on the same u-versus-x graph d) Explain in your own...
No a,b needed. please do c and d with clear steps
A mixture of m univariate Gaussians has the PDF: X(x) - where each pi 0 and Σ-i pi-1, and N(x; μ, σ*) = (2πσ2)-1/2 exp (-(x-p?/(2σ2)) exp (-(x-μ)2 a) How many parameters does a mixture of m Gaussians have? b) Let xi, , Vn be n observations drawn from a mixture of m Gaussians. Write down the log-likelihood function. Hint: it should involve two summations c) Let 1 k...
Answer all questions (especially part b if unable to do part
a)
QUESTION FOUR 25 MARKS] Consider the initial value problem d x()= A(0)x(t) +f(t), x(0) = xo where xo is some constant vector. A(T)dr A(t)= A(t)A()dr). Show that the matrix X (e) = ei A(0d (a) Assuming satisfies the matrix differential equation: Xt) = A(€)X(1) 10 Maris) (b) Obtain a solution to the initial value problem, given 0 A= f) x(0) -1 3 15 Marks
QUESTION FOUR 25 MARKS]...
I need help with d) please help thank you
Question 1 Wave motion appears in all branches of physics. In the lectures we considered the solution of the advection equation, a first-order hyperbolic PDE. Here we consider the solution of the wave equation: c2 where c >0 is constant. , We assume all variables have been non-dimensionalised. (a) Eq. (1) has the general solution (d'Alembert, 1747): u(x,t) F(x -ct) +G(x ct), where F and G are arbitrary functions. Consider the...
b and c please the first photo is just some background
information ! thank you.
Unless otherwise specified, the domain of a function f is assumed to be the set of all real numbers x for which f (x) is a real number. A large vat is initially filled with a saltwater solution. A solution with a higher concentration of salt flows into the vat, and solution flows out of the vat at the same rate. The number of pounds...
please work out parts b,c,d with clear steps thanks
A mixture of m univariate Gaussians has the PDF: X(x) - where each pi 0 and Σ-i pi-1, and N(x; μ, σ*) = (2πσ2)-1/2 exp (-(x-p?/(2σ2)) exp (-(x-μ)2 a) How many parameters does a mixture of m Gaussians have? b) Let xi, , Vn be n observations drawn from a mixture of m Gaussians. Write down the log-likelihood function. Hint: it should involve two summations c) Let 1 k < m....