photo

DDD


Aktiv seit 2015

Followers: 0   Following: 0

Statistik

All
  • Thankful Level 3
  • Solver

Abzeichen anzeigen

Feeds

Anzeigen nach

Frage


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...

mehr als 7 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


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...

etwa 9 Jahre vor | 0 Antworten | 0

0

Antworten

Frage


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:...

etwa 9 Jahre vor | 0 Antworten | 0

0

Antworten

Frage


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...

etwa 9 Jahre vor | 2 Antworten | 0

2

Antworten

Frage


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...

etwa 9 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


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...

etwa 9 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


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=[]; ...

etwa 9 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


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...

mehr als 9 Jahre vor | 0 Antworten | 0

0

Antworten

Frage


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: __...

mehr als 9 Jahre vor | 0 Antworten | 0

0

Antworten

Frage


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)...

mehr als 9 Jahre vor | 1 Antwort | 0

1

Antwort

Gelöst


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:...

mehr als 9 Jahre vor

Frage


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...

mehr als 9 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


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...

mehr als 9 Jahre vor | 2 Antworten | 0

2

Antworten