# Athanasios Paraskevopoulos

### Hellenic Open University

Last seen: 1 día hace Con actividad desde 2023

Followers: 1   Following: 3

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.

Programming Languages:
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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Representation of Gabriel's Horn
By reading the following very interesting paper An Understanding of a Solid with Finite Volume and Infinite Surface Area. ...

2 días hace | 1 respuesta | 0

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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...

alrededor de 1 mes hace | 0

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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) + .....

alrededor de 1 mes hace | 0

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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...

alrededor de 1 mes hace | 0

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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...

alrededor de 2 meses hace | 1 respuesta | 0

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Plot 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...

alrededor de 2 meses hace | 0

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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...

alrededor de 2 meses hace | 0

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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...

2 meses hace | 0

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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...

2 meses hace | 1 respuesta | 1

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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...

2 meses hace | 1 respuesta | 0

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Ayers '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...

2 meses hace | 0

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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...

2 meses hace | 0

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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...

2 meses hace | 0

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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); ...

2 meses hace | 0

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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...

2 meses hace | 0

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How to solve SIR model with using DTM (Differential Transform Method)
function sir_model_dtm() % Parameters alpha = 0.3; % Infection rate beta = 0.1; % Recovery rate N = 1...

2 meses hace | 0

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Display in the command window
startUpHeight = 299.07; startUpValue = 100; radius = 15; minConstraintX = 50; % Swapped values maxConstraintX = 150; % Sw...

2 meses hace | 0

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Population Growth Model Analysis
Below I tried to solve Population Growth problem, I provide you the mathematical solution. Also, I create MATLAB code, however i...

2 meses hace | 1 respuesta | 0

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frequency equation for multiple degree freedom system
% Define the mass matrix M M = diag([1.8, 6.3, 5.4, 22.5, 54.0]); % Define the damping matrix C C = [10000, -10000, 0, 0, 0...

2 meses hace | 0

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Solving logistic ode for bacterial population growth
% Parameters r = 0.002; % per second K = 50000; % carrying capacity (assuming a value, as it is not provided) N0 = 1000; %...

2 meses hace | 0

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Selecting appropriate values for the parameters in the Gierer-Meinhardt activator-inhibitor model
For the following activator-inhibitor system (Alfred Gierer-Hans Meinhardt model), with all constants positive and initial ...

3 meses hace | 2 respuestas | 0

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Plotting Damped Nonlinear Oscillator
The given system is a damped nonlinear oscillator with a nonlinear resistance, described by the differential equation: where ...

3 meses hace | 1 respuesta | 0

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Discrete Population Growth Model Plot
Use the detailed, discrete model for population growth that follows a variation of the logistic law: with . Calculate the p...

3 meses hace | 0 respuestas | 0

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Plotting discrete Klein - Gordon equation (DKG) with friction in DNA
I am exploring the dynamics of the discrete Klein - Gordon equation (DKG) with friction is given by the equation : In the ab...

3 meses hace | 1 respuesta | 0

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Calculating the radius of a link budget
Hello! To calculate the cell radius of a link budget, particularly in a telecommunications context like satellite communications...

3 meses hace | 0

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Laws of motion 1

3 meses hace

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Why isn't my MATLAB plot not showing up?
It looks like the issue with your MATLAB code is related to how you've set up the ranges for plotting the IV curves. In MATLAB...

3 meses hace | 0

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Matrix multiplication
Multiply two incoming matrices via matrix multiplication

3 meses hace

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Calculate Amount of Cake Frosting
Given two input variables r and h, which stand for the radius and height of a cake, calculate the surface area of the cake you n...

3 meses hace

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Add two numbers
Given a and b, return the sum a+b in c.

4 meses hace