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# JESUS DAVID ARIZA ROYETH

##### Last seen: 1 month ago
269 total contributions since 2015

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Checking invertiblity of a symbolic matrix (small size N=12)
remember that a matrix has an inverse if and only if its determinant is different from 0, therefore you must calculate for which...

11 months ago | 0

Writing a frame to a video error
you need to rearrange some things: clear all;clc; filename1='x_recall_safeaudio_shockvideo.csv'; filename2='y_recall_safeau...

11 months ago | 0

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How do I get specific rows from a matrices where a<= x<= b
newmatrix=data1(and(and(data1(:,1)<=10,data1(:,2)<=150),data1(:,2)>=75),:)

11 months ago | 0

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ZORD=sortrows(Z',4)'; [~,~,C]=unique(ZORD(end,:)); ZFIN=[ZORD; C']

1 year ago | 1

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how to know if a char vector contains unwanted characters?
y=["5","6","10"];%y example condition=all(ismember(y,x))

1 year ago | 0

How to eliminate duplicate rows in an array without changing their orders?
D=unique(DOM,'rows','stable')

1 year ago | 1

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Convert Matlab CNN to c# to be used in .net desktop app.
yes you can Generate a .NET Assembly and Build a .NET Application with Matlab Compiler you can use the exportONNXNetwork funct...

1 year ago | 0

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Deleting a row y from a matrix
A(all(A==y,2),:)=[] edit previous versions: A(all(A==repmat(y,size(A,1),1),2),:)=[]

1 year ago | 0

Filtrar datos cada n pasos en el tiempo de una matriz
matrizoriginal=0:0.0001:49 ; nuevamatriz=matrizoriginal(1:1000:end)

1 year ago | 0

buenas alguien sabe como puedo poner en una formula numeros aleatorios normalmente distribuidos?
mira la documentación : https://la.mathworks.com/help/matlab/ref/randn.html números aleatorios normalmente distribuidos : n=...

1 year ago | 0

Alguien me puede ayudar excel y matlab
para el que le sirva aquí está la documentación oficial para plotear funciones de transferencia y las respuestas del sistema : h...

1 year ago | 0

Sum of integers up to n using a while loop
try it yourself with a for (see documentation) https://www.mathworks.com/help/matlab/ref/for.html You can be guided by this ex...

1 year ago | 1

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Octave--compare two matrix
M=A(ismember(A,B,"rows"),:)

1 year ago | 0

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Why sometimes we place an empty brackets inside function inputs?
means that the second value the function receives is empty, in both cases if you give a value to that second parameter to "min"...

1 year ago | 0

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how to fix this upper directory link?
File_W = fullfile(app.Path, '..', 'MyFolder', [fileName, '_myFormat_.xlsx']); writetable(T1, File_W); a=dir(File_W); namefold...

1 year ago | 0

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Datetime problem of converting string
hh is uppercase D=datetime('2019/09/05 19:02:11', 'InputFormat','yyyy/MM/dd HH:mm:ss')

1 year ago | 1

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Error : Subscript indices must either be real positive integers or logicals.
you missed a "*" here : 2*g1*(2*..... and many "." ./ g1 = 1.4; R1 = 287; T = 283.15; g4 = 1.667; R2 = 2077; a1 = sqr...

1 year ago | 0

How to find the position of a row in an array
rows=find(all(R==S,2))

1 year ago | 0

Matrix Input Layer for Deep Neural Networks
The wonderful thing about Matlab is that almost everything is seen as matrices or vectors, in fact this is not a disadvantage bu...

1 year ago | 0

Solved

Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1 year ago

Solved

Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

1 year ago

Solved

Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

1 year ago

Solved

Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

1 year 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...

1 year 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...

1 year ago

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

1 year 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....

1 year ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

1 year ago