I need counter example to show that:
the (R_L) and caputo fractional derivative does not satisfy the multiplication, quotient and composite rules
Z’ + p(x) Z α = g(x) Z α - 1 Z’ : the first derivative , α ∈ (0,1) How can I solve this Differential equation ??
02 March 2016 5,343 1 View
Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...
31 July 2024 3,333 4 View
I am currently working on a mendelian randomization study, and I have downloaded the datasets needed from the ieu opengwas project (mrcieu.ac.uk) in .vcf format. I do not have access to an R...
19 July 2024 2,342 5 View
One of the papers I read by Toby, where (title of the paper was "R factors in Rietveld analysis: How good is good enough?"), he tells us that to get good chi square value, you must have low Rwp,...
17 July 2024 9,668 4 View
While working on fractional order derivatives I found the behavior of conformable derivative is different from Caputo fractional derivative. Therefore, I want to know the difference between these...
08 July 2024 4,057 1 View
I am creating a single element model in Abaqus of a composite material. My goal is to match the stress-strain curve of the material which was obtained experimentally. I am using VUMAT for Fabric...
07 July 2024 10,036 5 View
We have developed an ODE model comprising 25 interrelated equations with common coefficients. This biochemical model, applied in wastewater treatment, is characterized by stiffness. Utilizing the...
06 July 2024 7,077 4 View
I ran PCA on 4 variables using the prcomp library. All variables were normalized to have a mean of zero and a standard deviation of one (z-score) before the PCA. prc 1 and I performed a varimax...
26 June 2024 6,792 1 View
What is it's difference between lsoda method in R vs. ODE23 or 45 solver in MATLAB.(especially in wastewater treatment and biochemical processes) I am currently engaged in the development of a...
24 June 2024 9,188 2 View
Hello everyone, I am currently 26 years old (feeling like I am making a lot of mistakes at this young age), finishing my Master's degree, and planning to continue onto a PhD and possibly a...
30 May 2024 6,980 2 View
Chi-squared is a small, good-fit chart but it has high R factors. Is this result acceptable?
25 May 2024 6,830 0 View