Réponse apportée
Alternative to the sym function
Something like this displays your matrix, but this is *display purpose only* s = sprintf( 'A=[\n') for i= 1: 10 s= ...

plus de 10 ans il y a | 1

Réponse apportée
summation operation in matlab
You must define _i_ as a symbolic variable too, otherwise _i_ is defined as the sqrt(-1) syms A i N = 6; Pb = (A.^N/f...

plus de 10 ans il y a | 0

Réponse apportée
element in matrix multiplication to create a new matrix
Your code doesn't run because you are using .* which is element wise multiplication instead of standar matrix multiplication. Yo...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
how to load .mat file into a function
function myfunction(myMat) load(myMat); %your code you call your function as: myfunction('path/MyMat.mat')

plus de 10 ans il y a | 5

Réponse apportée
How can I write the following matrix?
x = sym('x', [10 1]); y = sym('y', [10 1]); if true A = [x(1)^2 x(1)*y(1) y(1)^2 x(1) 1; x(2)^2 x(2)*y(2) y(...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
Reusing a calculated variable twice?
when you use "syms" is to create symbolic variables. clear g=9.81; h=10; u=1.5; syms a b c d a=u./sqrt(g.*...

plus de 10 ans il y a | 0

Réponse apportée
"In an assignment A(I) = B, the number of elements in B and I must be the same" and cant work out why
k1 is the output of _fun_ so it's an array, it has 2 values. So, when you call fun(f(i)+k1/2,xp(i)+k1/2) you are tryi...

plus de 10 ans il y a | 0

Réponse apportée
How do I store each output of my function as an vector element?
I guess there are more efficient ways to do it, but have you try a simple for loop? for i=1:150 [tau(i),doppler(i)...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
calculate an angle and distance from three points
The distance can be calculated as the norm of the vector between two points: P1 = [2; 50], P2 = [9; 40], P3 = [5; 20] ...

plus de 10 ans il y a | 1

Réponse apportée
These are 2 subprograms i have used to define 2 function grad and fnc. I have called the function grad , and in the function grad fnc is called, now x is a vector, and fnc is a scalar function of a vector variable still it is returning a vector
The problem is that _fnc_ is an input for grad, so _fnc_ is a variable from now on. When you try to call _fnc(x)_, MATLAB thinks...

plus de 10 ans il y a | 0

Réponse apportée
index must be a positive integer or logical.
A solution is this: c1=3.29; c2=9.90; c3=0.77; c4=0.20; Ln=zeros(1,length(t)); t= 0:-0.1:-1; %definition of...

plus de 10 ans il y a | 0

Réponse apportée
How to do surf plot if Z is not a matrix?
Let's assume _a_ is a number. There is a value of Z for every (X,Y), thus, Z is a matrix and it has same size as X. a = 1...

plus de 10 ans il y a | 1

Réponse apportée
Matlab source code for file selection
Hi, If I understood correctly you want to read the files from the folder Snaps, subsample them and then save them on a new f...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
restarting a while loop without finishing the remaining code.
Just in case you need the solution to your problem. You wanna break the while loop when all the values are not positive, so, y...

plus de 10 ans il y a | 0

Réponse apportée
How to efficiently pass large constant matrix in parfor
You can use global variables on parfor but, you cannot define global variables or persistent variables within the body of the pa...

plus de 10 ans il y a | 0

Réponse apportée
restarting a while loop without finishing the remaining code.
continue command restart the while loop. When condition holds the code after the if will not be run. while(1) %%yo...

plus de 10 ans il y a | 0

| A accepté

Réponse apportée
Two identical commands take different times to run?
When you create a 2D array, you need to reference each element to its memory address. As a result, for a 2D array, you need to a...

plus de 10 ans il y a | 0