photo

DDD


2015년부터 활동

Followers: 0   Following: 0

통계학

All
  • Thankful Level 3
  • Solver

배지 보기

Feeds

보기 기준

질문


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...

7년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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...

9년 초과 전 | 답변 수: 0 | 0

0

답변

질문


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:...

9년 초과 전 | 답변 수: 0 | 0

0

답변

질문


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...

9년 초과 전 | 답변 수: 2 | 0

2

답변

질문


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...

9년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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...

9년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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=[]; ...

9년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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...

9년 초과 전 | 답변 수: 0 | 0

0

답변

질문


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: __...

9년 초과 전 | 답변 수: 0 | 0

0

답변

질문


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)...

9년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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...

9년 초과 전 | 답변 수: 1 | 0

1

답변

질문


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...

9년 초과 전 | 답변 수: 2 | 0

2

답변