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| 1. w0 is not defined. 2. The "x" in u[x],v[x],w[x] and z[x] is an independent parameter (e.g., "x" is similar to "t" in ODE) but you again used the "x" as a state or dependent variable (i.e., x[t]:= Log[1 + t]/Log[10]). Thus x in u[x] and x in... |
| I developed an Excel file for this retirement planning model because I found that (1) non-Mathematica users can not open my Mathematical model available in the Wolfram community website and (2) Wolfram Player can open my Mathematical notebook but... |
| Hi Daniel, I posted another question on PCA after reading your comments carefully because I consider PCA as one of the most important methods. https://community.wolfram.com/groups/-/m/t/2949003?p_p_auth=6pSCpXdg |
| I was puzzled by Daniel Lichtbau’s comments on PCA (Principal **Componen**t Analysis). He demonstrated that the PrincipalComponents function is **not** what it is called and it does the Principal **Coordinate** Analysis. ... |
| Thanks for your valuable information. I was not aware of these publications. I have posted another update to demonstrate that the CO2 sink has been increasing. https://community.wolfram.com/groups/-/m/t/2927367 |
| &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/5db570b0-7637-4d94-803f-049893086fb1 |
| Dr. James Murray is a distinguished person in mathematical biology, and he developed "difference" equations for marital conflict. 1. The Mathematics of Marriage: Dynamic Nonlinear Models By John M. Gottman, James D. Murray, Catherine C.... |
| 1. You used "kli" which contains alphabet "l" in the middle and "k1i" which contains the number "1". 2. Use the following commands: sol = ParametricNDSolve[{ode1, ode2, A[0] == 15, F[0] == 3}, {F, A}, {t, 0, 100}, {a}]. Use F... |
| Thanks for your great work. This will be very useful for me to apply NN to PDE. |
| Thanks for your email. Somehow, I was not noticed. I sent an email to your email address. It would be great if you could share the code via email. I think many people share the Mathematica code here, but it depends on you. Regards, ... |