Answered
How to solve 2nd order differential equations while variables are coupled?
Try the following code: syms w U1r(x) U1i(x) U2i(x) U2r(x) L m d eq1=(w-1)*U1r-diff(U1i)+L*U2r-m*diff(U1r,2)==0; eq2=(w+1)*U...

más de 1 año ago | 0

| accepted

Answered
Matlab equivalent of in from python
exist command will do. Check its usage: https://www.mathworks.com/help/matlab/ref/exist.html

más de 1 año ago | 0

| accepted

Answered
Flipped numbers (number pyramid)
n=4; for i=1:n A(i)=str2double(string(sprintf('%d',1:i))); end disp(A)

más de 1 año ago | 0

Answered
anyone can solve code y” + y’ =0 to find general solution
syms y(t) eq=diff(y,2)+diff(y)==0; y(t)=dsolve(eq)

más de 1 año ago | 0

Answered
asymptotic magnitude bode plot of fractional order transfer function
The following code should give you what you want: hold off; alpha=0.9;Wcr=2; w1=logspace(-1,log10(Wcr),1000);w2=logspace(log1...

más de 1 año ago | 0

Answered
Filtering Columns by Contents of Rows
n=2; A(:,(sum(~isnan(A),2)<n).')=[]

más de 1 año ago | 0

Answered
the function of \n
newline For instance: chr = 'Whose woods these are I think I know.'; chr = [chr newline 'His house is in the village though']...

más de 1 año ago | 2

| accepted

Answered
convert simulink file from 2017a to 2016a
Find it attached.

más de 1 año ago | 0

Answered
How do I give order or number for "a" with ijk in the following code ? Please help me
What you are trying to do is not recommended in MATLAB since dynamically creating variables is not useful. You have several othe...

más de 1 año ago | 0

| accepted

Answered
If i try to write derivative of f in the below code(i pointed here), it doesn't work. why?
You do not have to use Symbolic approach this time. Try the following code: hold off; x1=2.5; f=@(x) x.*sqrt(x)+2*x.^3+1.5; %...

más de 1 año ago | 0

Answered
Vectorize for loop with recursion
P1(P4>0)=x; P2(P4<0)=x; P3=P1+P2; P4(2:end)=P3+P4(1:end-1);

más de 1 año ago | 0

Answered
How to create a clickable timeline using app designer, with play/pause button?
If I understood it correctly, you want to dynamically change the time limits of an axes property. The attached app may be a star...

más de 1 año ago | 0

Answered
How to replace equations in symbolic function
By using subs function: syms a b x F=3*a*b; Fnew=subs(F,{a,b},{x,1})

más de 1 año ago | 0

| accepted

Answered
problem with function sinc
Adapt its formula as follows: x = 0:pi/100:2*pi; y=sin(pi*x)./(pi*x);%sinc function plot(y)

más de 1 año ago | 2

| accepted

Answered
repeat an element in a vector
[n(1) n] or [repmat(n(1),1) n]

más de 1 año ago | 0

| accepted

Answered
Plotting from a for loop- discrete maps
function [x] = logistic(lambda,x0,n) x(1) = x0; for i= 1:n x(i+1) = lambda*x(i)*(1-x(i)); z(i,:) = [i,x(i)]; di...

más de 1 año ago | 0

| accepted

Answered
Aiming to solve function and have one of the variables be a minimum value:
The key point here is to define solx as a function of r. Try the following code: syms r x a = 100; Cp = .70; b = .50206; c ...

más de 1 año ago | 0

| accepted

Answered
How to create this fucntion below
You can try the Symbolic approach: syms y(t) y(t)=piecewise(t<-1,0,t>=-1 & t<0,2,t>=0 & t<=1,-2,t>1,0); %plotting t=-5:0.001...

más de 1 año ago | 0

| accepted

Answered
Can I input an m file into a simulink model as a function block? If so, how?
Use MATLAB Function block.

más de 1 año ago | 1

Answered
Force Simulink Embedded Coder to do a simple cast when converting float to uint16?
Why don't you use a MATLAB Function block and write this line inside it? For example: y=uint16(x); This line should go inside ...

más de 1 año ago | 0

Solved


Alternating sum
Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

más de 1 año ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

más de 1 año ago

Solved


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

más de 1 año ago

Answered
plotting Intensity function which consists of an exponential sum
Try this: L=100; N=20; d=1; k=10; Ar=1; A=0.1; theta=linspace(-pi/2,pi/2,200); epsilon=rand; phase=(d+A*epsilon)*sin(theta)...

más de 1 año ago | 0

Solved


Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

más de 1 año ago

Solved


Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

más de 1 año ago

Solved


Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

más de 1 año ago

Solved


Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

más de 1 año ago

Solved


Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

más de 1 año ago

Solved


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

más de 1 año ago

Load more