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質問

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...

8年弱前 | 1 件の回答 | 0

1

回答

質問

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...

10年弱前 | 0 件の回答 | 0

0

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質問

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:...

10年弱前 | 0 件の回答 | 0

0

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質問

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...

10年弱前 | 2 件の回答 | 0

2

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質問

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...

10年弱前 | 1 件の回答 | 0

1

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質問

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...

10年弱前 | 1 件の回答 | 0

1

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質問

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=[]; ...

10年弱前 | 1 件の回答 | 0

1

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質問

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...

10年弱前 | 0 件の回答 | 0

0

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質問

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: __...

約10年前 | 0 件の回答 | 0

0

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質問

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)...

約10年前 | 1 件の回答 | 0

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解決済み

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:...

約10年前

質問

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...

約10年前 | 1 件の回答 | 0

1

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質問

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...

約10年前 | 2 件の回答 | 0

2

回答