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Athanasios Paraskevopoulos


Hellenic Open University

Last seen: Today Aktiv seit 2023

Followers: 0   Following: 3

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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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Beantwortet
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...

5 Tage vor | 0

| akzeptiert

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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...

6 Tage vor | 1 Antwort | 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...

8 Tage vor | 1 Antwort | 0

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Beantwortet
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...

10 Tage vor | 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...

10 Tage vor | 0

| akzeptiert

Beantwortet
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...

10 Tage vor | 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); ...

12 Tage vor | 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...

12 Tage vor | 0

Beantwortet
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...

12 Tage vor | 0

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

13 Tage vor | 0

| akzeptiert

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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...

13 Tage vor | 1 Antwort | 0

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Beantwortet
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...

15 Tage vor | 0

Beantwortet
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; %...

15 Tage vor | 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 ...

20 Tage vor | 2 Antworten | 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 ...

21 Tage vor | 1 Antwort | 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...

21 Tage vor | 0 Antworten | 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...

23 Tage vor | 1 Antwort | 0

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Beantwortet
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...

etwa ein Monat vor | 0

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Gelöst


Laws of motion 1

etwa 2 Monate vor

Beantwortet
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...

etwa 2 Monate vor | 0

Gelöst


Matrix multiplication
Multiply two incoming matrices via matrix multiplication

etwa 2 Monate vor

Gelöst


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...

etwa 2 Monate vor

Gelöst


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

etwa 2 Monate vor

Beantwortet
Find faster way than compose to format table
Here’s an approach you can try: 1. Instead of converting the whole table to strings at once, process the data in smaller chu...

etwa 2 Monate vor | 0

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Gesendet


BMI Calculator with Health Status Indicator
BMI Calculator: Inputs weight and height to compute BMI, displays result with health status message, using dialog-based interact...

etwa 2 Monate vor | 4 Downloads |

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Subtracting a Vector from a Scalar-Multiplied Matrix
Let's say that we have the following two matrices and we want to calculate . We know that it is not defined, but MATLAB gives m...

etwa 2 Monate vor | 1 Antwort | 0

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Beantwortet
How to draw an histogram?
f you already have the matrix, use it directly. If not, here is an example of how you can generate a random matrix with integers...

etwa 2 Monate vor | 0

Beantwortet
Bode Plot for two different sinusoidal inputs
% Define the transfer function coefficients numerator = 8.008; denominator = [1 0.54 7.95]; % Coefficients of s^2, s, and th...

etwa 2 Monate vor | 0

| akzeptiert

Beantwortet
Matlab 2023/4 wont start on Sonoma 14.4.1
Please try the following steps: Ensure that the MATLAB version you are using is compatible with the new macOS Sonoma 14.4.1. So...

etwa 2 Monate vor | 0

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Plot of Integration Volume
Hi everyone, I'm working on visualizing an integration volume in MATLAB for the first time, and I'd appreciate some feedback on...

etwa 2 Monate vor | 1 Antwort | 0

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