Richard Wood
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Awarded to Richard Wood on 20 Oct 2020
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Question
Put arrows on a continuous line plot to show direction of evolution
Hello everybody What I am trying to do is yo show, through, for example, the quiver function, the direction of evolution of my ...
6 meses ago | 1 answer | 0
1
answerQuestion
Iteratively rename a .txt using writematrix
Hello everybody, I have created the following array: substrates={'MgO' 'SiO2' 'W' 'Al2O3' 'Sapphire'}; What I want to do is, ...
6 meses ago | 1 answer | 0
1
answerQuestion
Impose a numerical limit on the value of a sum of two vectors
Hello everyone I want to sum two arrays, let's say a1 and a2. However, I seek that the sum, element by element, of these vect...
6 meses ago | 3 answers | 0
3
answersQuestion
Solve a system of three coupled first-order differential equations
Hello eveyone, I'm trying to solve the system of coupled first-order differential equations that appears in the PDF that I atta...
alrededor de 1 año ago | 1 answer | 0
1
answerQuestion
Construct an array from the position of a certain value in a matrix
Hello everyone Let's assume we have a matrix, which I attach, matrix.dat, which has 220x200 elements (https://we.tl/t-KwSPQEs...
alrededor de 1 año ago | 0 answers | 0
0
answersQuestion
Obtain a random number from a truncated normal distribution
Hello everyone, I want to obtain a random number from a truncated normalized distribution. Let's say that we have the followi...
alrededor de 1 año ago | 3 answers | 0
3
answersQuestion
Load sequential numbered files in MatLab on the same script in different subfolders
Hello everyone, Let's imagine I have my MatLab script at the following address: "C:\Users\890384\Desktop\MatLab". Inside thi...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Problems using the curve fitting app
Hello everyone, I'm a bit stuck on how the curve fitting toolbox works. I attach the data with which I am working, where "mx_...
más de 1 año ago | 1 answer | 0
1
answerQuestion
How to change the plot title and file name when saving it to a for loop
Hello everyone I have the following arrays of relevance to the question: substrates=["MgO" "SiO2" "W"]; substrates_title=["...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Creation of a colorbar with quantized solid block-like colors and 180º rotation of the colobar label
Hello everyone, I am dealing with the following type of figure u1=figure(i) imagesc(pulse_duration.*(10^(12)),amplitu...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Storing different values on a matrix depending on the last value of some arrays on concatenated for loops
Hello everyone, I am evaluating a problem that requires the resolution of a second order differential equation, which must b...
más de 1 año ago | 0 answers | 1
0
answersQuestion
Solve a second-order differential equation with an array parameter that does not depend explicitly on the independent variable
Hello everyone, I am trying to solve a second-order differential equation, which includes a parameter whose value for each step ...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Resolution of a second-order differential equation for multiple variable parameters
Hello everyone, I am trying to solve a second-order differential equation, given by Eq. (1) in the document attached in this ...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Convert a 1x1 cell to a .dat file
Hello everyone I am trying to do, probably, a very simple task. Actually, I have in my workspace a variable called 'sol', whi...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Resolution of a second-order differential equation for different regions controlled by an external parameter
Hello everyone I am trying to perform a time integration to a second-order differential equation numerically. The objective i...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Curve fitting to a non-linear created equation
Hello everyone I have a doubt concerning a fitting that I am trying to obtain. Suppose my independent variable is called "spa...
casi 2 años ago | 0 answers | 0
0
answersQuestion
Solve numerically a system of first-order differential equations
Hello everyone, I have the following set of coupled first-order differential equations: a*x'/z+y'=b; x'/z-a*y'=c*sin(2*y); ...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Smoothing of noisy data
Hello everyone, I want to smooth my data, which looks like It is possible to see a trend, more or less. Using smooth(data) ...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Frequency extraction of multiple monochromatic waves from a multidimensional array
Hello everyone, I describe what files I have attached in this question (see them here: https://wetransfer.com/downloads/b1b57...
casi 2 años ago | 0 answers | 0
0
answersQuestion
Save an array with multiple rows and columns in .txt file
Hello everyone, my question is very simple. I have a big array (30001x2434 elements), and I want to save all the data in .txt...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Creation of a .dat files in a for loop
Hello everyone, I am trying to do the following. Let's imagine that you have the following arrays: mx_inelastic (30001x2434 e...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Phase diagram of a second-order differential equation
Hello everyone I have solved a second-order differential equation, and as a result of it I have obtained the values of an ang...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Damped harmonic oscillator fitting
Hello everyone, I am trying to fit my data to a damped harmonic oscillator with functional form: mx=A*cos(omega*time-phi)*exp...
casi 2 años ago | 1 answer | 0
1
answerQuestion
How to save the value of some variables in a .dat file inside a nested loop in the function environment
Hello everyone, I am trying to create a .dat file on each for loop of a function enviroment file. The code looks like: for...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Concatenation of three-dimensional arrays
Hello everyone, I am trying to concatenate two three-dimensional arrays inside of a double for loop: for i=1:length(Tempe...
casi 2 años ago | 0 answers | 0
0
answersQuestion
ode45 inside a nested loop
Hello everyone, My situation is the following. I want to solve a second-order differential equation, where the parameters inv...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Solve a second-order differential equation with constant parameters changing through an external parameter
Hello everyone, I know that this a very vague question, but I am quite lost in this aspect, so I am asking for some help to b...
casi 2 años ago | 1 answer | 0
1
answerQuestion
Create a .avi through VideoWriter
Hello everyone, I am trying to replicate the approach given in this example: https://es.mathworks.com/matlabcentral/answers/7...
casi 2 años ago | 1 answer | 0
1
answerQuestion
How to deal properly with a fitting to a non-linear curve nested in a for loop
Hello everyone, I am dealing with the following situation. I have the following arrays in my workspace: data_set_elastic (300...
casi 2 años ago | 0 answers | 0
0
answersQuestion
Two-dimensional colormap
Hello everyone, I have the following arrays: spatial_grid(30001x1 elements), physical_time_elastic (2431x1 elements), and dat...
casi 2 años ago | 1 answer | 0
