A classical math problem: differential equations

Forum|Forum|11 years ago
June 25, 2015
13 replies
8313 views

Here is the Mathcad 11 sheet that solves nth order differential equations with constant coefficients, referenced in the document thread with similar name here: A Classical Math Problem from a Classical Text (Differential Equation).

Note that this, as it is, is NOT usable for:
- Systems of differential equations,

- Differential equations where the coefficients of the derivatives are not constants (when they depend on t).

But in both cases, similar techniques can be used to solve specific systems.

Luc

1_ODEn-mcd.zip

Calculus_Derivatives

R

RichardJ

19-Tanzanite

Nice, but unfortunately it will not work in any version of Mathcad past version 11. The way you are using symbolic math in that first program was never officially supported, and was removed in version 12. Even if that could be fixed in some way, the Mupad symbolic engine can't handle the invlaplace expression

T

torme

1-Visitor

In my original post in this thread I was using Mathcad Prime 3.0. My career with Mathcad is long. I think I started many years ago with Mathcad 3 way before PTC entered the picture. My math challenges were relatively simple algebra problems, so I didn't get into much calculus. In my retirement I'm exploring areas where necessary math skills are more demanding. LucMeekes and Richard Jackson bring up topics unfamiliar to me. The bottom line, however, seems to be that in addition to Mathcad, pencil and paper are still necessary.