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Question
Error in delaunayTriangulation function
Trying to implement the FEM i am using delaunayTriangulation to divide the space. I am getting an error: Error using delaun...
nästan 8 år ago | 1 answer | 0
1
answerQuestion
d(phi)/dt=laplaciano(-phi+phi^3-laplaciano(phi)) given boundary conditions and a initial state (strange result)
It is given d(phi)/dt=laplaciano(-phi+phi^3-laplaciano(phi)) to solve in a square 30*30 (L=30). It is also mentioned that p...
nästan 10 år ago | 0 answers | 0
0
answersQuestion
convolve two signals using coonv, filter, cconv, freq domain multiplication (this one gives a wrong answer)
only the last one is not giving me an equal answer. u=@(n)1.0.*(n>=2); y=@(n)abs(2.*n+1).*(u(n+1)-u(n-5)); n_x=1:...
nästan 10 år ago | 0 answers | 0
0
answersQuestion
Conv two continuous time functions
given y(t) and x(t), it is asked to conv them. Note: x(t)=dirac(t-3)-dirac(t-5). The conv result should sum y(t-3)-y(t-5) but i...
nästan 10 år ago | 2 answers | 0
2
answersQuestion
Stem time convolution using conv, filter, cconv and multiplication in frequency domain
It is asked to graph time convolution using conv, filter, cconv and multiplication in frequency domain. All the answers seem to...
nästan 10 år ago | 1 answer | 0
1
answerQuestion
solve some integrals using trapezoidal rule and a matlab built-in function and to represent the original function in a graph
It is asked to solve some integrals using trapezoidal rule and a matlab built-in function and to represent the original function...
nästan 10 år ago | 1 answer | 0
1
answerQuestion
if cycle is not working
Hello! while solving an exercise the if cycle is not working. Is anything wrong? Thanks L=1; xfinal=L; u=[]; ...
nästan 10 år ago | 1 answer | 0
1
answerQuestion
richardson extrapolation method wrong
Why is this richardson extrapolation method wrong? function D=f_richardson(f,n,h,x0) D=zeros(n,n); e=zeros(n); for t=1:n...
nästan 10 år ago | 0 answers | 0
0
answersQuestion
bvp using secant method and range kutta 4th order
It is asked to solve m* d^2 y/dt=-g-gama*dy/dt. the values given are alredy in the code what is wrong with this function: __...
nästan 10 år ago | 0 answers | 0
0
answersQuestion
create a function that is the derivate of a f=@(t) function
having a function fa=@(x) x^5-0.4475*x.^4-3.1*x.^3 + 3.085*x.^2-0:962*x+ 0:0943 how to calculate dfa=@(x) diff(fa)...
nästan 10 år ago | 1 answer | 0
1
answerSolved
Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
nästan 10 år ago
Question
How to sum functions and get an expression in order to a given variable?
For example, if a have: x=@(t) 1+ t + 3t^2 + 5t^3 + 9t^4; y=@(t) 1+ t + 3t^2 z=@(t) x(t)-y(t) can i get an a...
nästan 10 år ago | 1 answer | 0
1
answerQuestion
use f=@(x) as an argument of a function.m
I have the function function [ k ] = New_Raph( f,df,x,tol) x_old =x; x=1000; while abs(x...
nästan 10 år ago | 2 answers | 0
