Athanasios Paraskevopoulos
Hellenic Open University
Athanasios is a Teacher of Mathematics with a proven track record of working in education management. Proficient in Ease of Adaptation, Course Design, and Instructional Technology. Strong education professional with a Bachelor's degree with an emphasis in Mathematics from the University of Aegean. Currently, he is pursuing a Master's degree in Applied Mathematics at the Hellenic Open University, with a specific focus on Ordinary and Partial Differential equations. His enthusiasm lies in the application of mathematical models to real-world contexts, such as epidemiology and population growth.
MATLAB
Spoken Languages:
English
Pronouns:
He/him
Professional Interests:
Mathematics, Numerical Integration and Differential Equations, Partial Differential Equation Toolbox, Stochastic Differential Equation (SDE) Models, Applied Mathematics
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Feeds
Nondimensionalizing Length and Temp data from 2-D Ansys Transient thermal in Matlab
The characteristic length scale is 100 µm (or 100 × 10⁻⁶ m). The nondimensional length can be calculated as: where is th...
más de 1 año hace | 0
Resuelto
Pizza!
Given a circular pizza with radius z and thickness a, return the pizza's volume. [ z is first input argument.] Non-scored bonus...
más de 1 año hace
Odd and even numbers
You can solve this problem using a loop and an if-else statement to check whether a number is odd or even. % Define the range o...
más de 1 año hace | 0
Pregunta
Solving Duffing Equation with the new framework for ODEs
I solved the duffing equation using the new framework for ODEs. Below is the code. It works fine and plots as expected. Howeve...
más de 1 año hace | 1 respuesta | 1
1
respuestaDiscussion
Duffing equation : Transition to Chaos
Following on from my previous post The Non-Chaotic Duffing Equation, now we will study the chaotic behaviour of the Duffing Equa...
más de 1 año hace | 4
Pregunta
Duffing equation:Transition to Chaos
The Original Equation is the following: Let . This implies that Then we rewrite it as a System of First-Order Equations Us...
más de 1 año hace | 1 respuesta | 0
1
respuestaDiscussion
The Non-Chaotic Duffing Equation
Studying the attached document Duffing Equation from the University of Colorado, I noticed that there is an analysis of The Non-...
más de 1 año hace | 5
Discussion
Strange attractors
An attractor is called strange if it has a fractal structure, that is if it has non-integer Hausdorff dimension. This is often t...
más de 1 año hace | 9
Pregunta
Lorenz Attractor Animation with Frame-by-Frame Plotting
I was trying to create an animation of Lorenz Attractor. I used the following code but it did not give me the result I want l...
más de 1 año hace | 1 respuesta | 0
1
respuestaDiscussion
Dynamics of predator-prey model
This project discusses predator-prey system, particularly the Lotka-Volterra equations,which model the interaction between two s...
más de 1 año hace | 4
Discussion
Looking for Beginner Courses on Drone Programming
Hi everyone, I've recently joined a forest protection team in Greece, where we use drones for various tasks. This has spark...
más de 1 año hace | 1
Discussion
Gabriel's Horn
Gabriel's horn is a shape with the paradoxical property that it has infinite surface area, but a finite volume. Gabriel’s hor...
más de 1 año hace | 4
Pregunta
Representation of Gabriel's Horn
By reading the following very interesting paper An Understanding of a Solid with Finite Volume and Infinite Surface Area. ...
más de 1 año hace | 1 respuesta | 0
1
respuestaDiscussion
Stochastic simulation of a novel pathogen
We are modeling the introduction of a novel pathogen into a completely susceptible population. In the cells below, I have provid...
más de 1 año hace | 3
nonlinear dynamics(Measure synchronization)
Let's first correct and complete the provided code. We need to make sure that the equations, integration, and plot functions are...
más de 1 año hace | 0
How to take input values from users symbolically while running a code?
I think this is what you asked for % Function to generate rotation matrix rot_matrix = @(axis, theta) cos(theta) * eye(3) + .....
más de 1 año hace | 0
Plotting the Evolution of Spatially Localized Initial Conditions for Discrete Klein-Gordon Equation
% Parameters L = 200; % Length of the system K = 99; % Number of spatial points omega_d = 1; % Characteristic frequency b...
más de 1 año hace | 0
| aceptada
Discussion
Discovering an Excellent Resource on Ordinary Differential Equations
While searching the internet for some books on ordinary differential equations, I came across a link that I believe is very usef...
más de 1 año hace | 6
Discussion
Numerical Simulation of the Discrete Klein-Gordon Equation: A Study on Damped, Driven Nonlinear Wave Systems with Spatially Extended Initial Conditions
The study of the dynamics of the discrete Klein - Gordon equation (DKG) with friction is given by the equation : In the abov...
más de 1 año hace | 2
Pregunta
Plotting the Evolution of Spatially Localized Initial Conditions for Discrete Klein-Gordon Equation
Ιn continuation of the study with which I have been fascinated Numerical Simulation of a Damped, Driven Nonlinear Wave System wi...
más de 1 año hace | 1 respuesta | 0
1
respuestaPlot legend goes behing plot axes when using tiledlayout
The issue you are experiencing with legends disappearing behind the axes when moved in a tiledlayout can be addressed by setting...
más de 1 año hace | 0
Crank-Nicholson method
The main issue with your code is in the line where you solve the linear system A⋅unew=b. The correct approach is to solve for 𝑢...
más de 1 año hace | 0
Numerical Simulation of a Damped, Driven Nonlinear Wave System with Spatially Extended Initial Conditions
I found it i should remove the discretization parameter because in the following. I understood that @William Rose Thank yo...
más de 1 año hace | 0
| aceptada
Pregunta
Plotting Phase Portrait of Duffing Equation
I study a paper that describes a stationary problem where the function satisfies the boundary conditions and is governed by a m...
más de 1 año hace | 1 respuesta | 1
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respuestaPregunta
Numerical Simulation of a Damped, Driven Nonlinear Wave System with Spatially Extended Initial Conditions
The study of the dynamics of the discrete Klein - Gordon equation (DKG) with friction is given by the equation : In the abov...
más de 1 año hace | 1 respuesta | 0
1
respuestaAyers 'Differential Equations Problem 4
syms x y(x) C % Define the differential equation dy_dx = diff(y, x); ode = 4*x*dy_dx^2 + 2*x*dy_dx - y == 0; % Solve the...
más de 1 año hace | 0
plot of riemann surface
To plot a complete Riemann surface for the function, you need to consider the nature of the complex square root function and how...
más de 1 año hace | 0
| aceptada
Custom colorbar labeling centered on colors
I tried the folowing code! It is similar with your second graph, but I could replicate the arrows correct. You can edit the cod...
más de 1 año hace | 0
fitcdiscr bug: Why does "ClassNames" now have to be provided in alphanumerical order otherwise accuracy is terrible?
Code with Issue: load fisheriris Mdl = fitcdiscr(meas, species, "ClassNames", flip(unique(species, "stable")), "KFold", 10); ...
más de 1 año hace | 0
plotting the bifurcation diagram of Duffing oscillations in the (x1, omega) plane?
function dx = duffing(t, x) global alpha delta beta F omega dx = [x(2); -delta * x(2) - alpha * x(1) - beta...
más de 1 año hace | 0
