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**Feeds**

Question

Plotting a closed volume by connecting my points together

*I have coordinates of some points and by connecting them in 3D, I want matlab gives me a closed volume, not just connecting the...

7 years ago | 2 answers | 0

### 2

answersQuestion

Subtracting the two resulting graghs of my ode program

I have two second order differential equations. I solved them with Ode45, but I want to subtract the two resulting answers from ...

8 years ago | 1 answer | 0

### 1

answeri need adaptive simulated annealing

These links may help you <http://www.mathworks.com/matlabcentral/fileexchange/10548-general-simulated-annealing-algorithm> ...

10 years ago | 0

Calculating the maintenance costs over (x) amount of years

sum is a built-in matlab function, you should name your function or matric something else like *cost* cost = accumYears(x) ...

10 years ago | 0

Generalized eigenvectors not orthogonal

They are orthogonal, what is the problem? clear all close all clc; A=randn(10); B=randn(10); AA=A+A'; BB=...

10 years ago | 0

Solving set of 2 equations doesn't give a numerical solution

clc clear all close all syms x y eq1 = 2*x+3-7*y; eq2 = 2*y*7-123-2*x; S= solve(eq1,eq2,x,y); S=[S.x S.y]...

10 years ago | 0

| accepted

what is non-dominated sorting

Maybe these links can help you: <http://www.cleveralgorithms.com/nature-inspired/evolution/nsga.html> <http://www.mathwork...

10 years ago | 1

| accepted

Explicit solution could not be found

<< <</matlabcentral/answers/uploaded_files/21389/3d.jpg>> >> <</matlabcentral/answers/uploaded_files/21390/2d.jpg>> ...

10 years ago | 0

Triple integral found sym ?

fist of all your function hasn't written correct syntactically, then you can use this code: syms s gamma1 gamma2 y=f(s,g...

10 years ago | 0

Help with for loop

you have common mistakes,here your correct code: clear all close all clc; f1 = 100; % The lower frequency in c...

10 years ago | 1

How to solve 7 unknowns with 7 equations with ln

clear all close all clc; syms nMj nMk pHj pMj pHk pMk Am eq1=50-nMj-nMk; eq2=500-pHj-pMj; eq3=20-pHk...

10 years ago | 0

Simple subtraction from column/row - HELP

clear all close all clc; A=[50;50;50]; a=5; for i=1:a-1 A(1,i+1)=A(1,i)-a;A(2,i+1)=0;A(3,i+1)=A(1,i)-a; ...

10 years ago | 0

Error with matrix dimensions

you have two mistake: prevHist = zeros(256*3,1) and diffHist(i) = sqrt(sum((currHist - prevHist).^2)) your correct...

10 years ago | 0

| accepted

Error with matrix dimensions

you have two mistake: prevHist = zeros(256*3,1) and diffHist(i) = sqrt(sum((currHist - prevHist).^2)) your correct...

10 years ago | 0

I have an Anonymous Function and want to integrate it

clear all close all clc; syms x A=[x 2*x;3*x 4*x]; int(A(1,1),0,1)

10 years ago | 0

hi, I am Arfaoui Jouda ,a phd in electronic,i need help on genetic programming (genetic algorithm ) ,can you help me please?

May be you can find your answer in this link: <http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%25E2%259C%...

10 years ago | 0

| accepted

How to combine 2 functions in one graph with different line

clear all close all clc; t=0:0.1:5; x1=6*sin((5.6309*10^9)*t); x2=sin((5.6309*10^9)*t); plot(t,x1,'b',t,x2,'...

10 years ago | 0

| accepted

How to compute factorial if input is vector or matrix?

format long g A=[1 2 3 50;4 5 6 2;9 8 7 11]; for i=1:size(A,1) for j=1:size(A,2) A(i,j)=factorial(A(i,...

10 years ago | 1

how to exchange matrix rows depending on distance

clear all close all clc; A=[11 22 33 44;0 14 15 16]' B=[66 77 88 99;0 16 19 14]' for i=1:4 if A(i,2)<B(i...

10 years ago | 1

sqrt and norm doesn't return exact value

syms x y f=@(x,y)((x-1)^2+10*(y-x^2)^2); vpa(f(-1,2)) fx=gradient(f,x); fx=subs(fx,x,-1); fx=subs(fx,y,2); ...

10 years ago | 0

Help me about creating table in matlab ?

format short g x = [1;2;3;4;5]; y = [12;11;24;18;20]; z = [1.2;2.4;3.4;5.0;4.1]; A=[x y z]; disp(' ord...

10 years ago | 0

Could someone please provide me a demo code for cognitive radio network?

clc; close all; clear all; %This program is for optimization of spectrum sensing in %Cognitive radio network. ...

10 years ago | 1

Grading the students performance.

%w=wrong %c=correct %o=unanswered syms w c o s=0; for i=1:5 g(i)=input('answer= '); if g(i)==w ...

10 years ago | 1

| accepted

Programmatically change external mode data archiving directory

writing your desired directory with cd code in the command window, for exmaple my directory is C:\peace\one , you should write c...

10 years ago | 0

how to run an already written code?

open your matlab program then click on open file icon on the top of program, it open new window for you then choose yor m-file f...

10 years ago | 0

| accepted

How to convert an equation from z-plane to w-plane in MATLAB

syms z w G=(2*(z.^3)-4.424*(z.^2)+3.3634*z-0.8721)/((z.^4)-3.037*(z.^3)+3.425*(z.^2)-1.6935237*z+0.3084332); GN=subs(G,z...

10 years ago | 0

| accepted

Transfer function with time delay, transcendental transfer function

clear all close all clc; k1=1;k2=1;w=.5;z=2; s=tf('s'); H = (-(((s^2)+(k1+k2)*s)/(w*(s+k2)))*z); bode(H) ...

10 years ago | 0

Hi, I am new to matlab and i want to generate a voltage sag signal using m-file using the following equation

t=0:0.0001:2; f=2; A=1.0; W=2*pi*f; x=A*sin(W.*t); u=inline('t>=0'); a=0.6; t1=12; t2=24; x1= (1-a*(u(t-t...

10 years ago | 0

how to create on an efficient way zeros in a symbolic matrix?

syms x n=4; A=sym(zeros(n,2)); A(:,1) = zeros(n,1); A([1:n-1],2) = 0; A(n,2) = x; A

10 years ago | 2

| accepted

use any/all test with while loop in range 0:1:10

try this clear all clc; grades = input('Please enter the vector of your grades:') A =[0:1:10]; while grades > A...

10 years ago | 0