Bernt Lie
The `sinc` function has not been registered in Symbolics. ┆Issue is synchronized with this [Trello card](https://trello.com/c/LwTxCpTo) by [Unito](https://www.unito.io)
In the past (i.e., some months ago), functions `polyfit`, `polyval`, etc. worked. I have the impression that `polyfit` has been replaced by `fit`, and that `polyval` has been eliminated. I...
**Question❓** I'm trying to use `@constants` with a `begin...end` construct within an MTK model created by `@mtkmodel` [similar to using a `@parameters` construct], but I'm told that `@constants` is not...
Frequently, MTK models exhibit weird/unphysical oscillatoric behavior when I use step inputs and default solvers: This plot uses input functions: ```julia u_p_f(t) = t < 0.5 ? 220e5 : 0.95*220e5...
I noticed that `Symbolics` seems to handle `A*x=b` via `x = A\b` when `A` and `b` are symbolic arrays. However, with `x*A=b`, `x=b/A` does not work, and I have to...
I saw an issue raised in early May that Symbolics no longer handles `inv` of 1x1 matrices, e.g., `[x;;]` where `x` is a variable. * This is still the case...
**Trying out MethodOfLines.jl for industrial problem** I'm trying to make MOL work for gas-lifted oil production, where I have a liquid and gas entering the distributed volume via valves, and...
** Does MOL support BCs including Algebraic Equations❓** I'm trying to solve a "realistic"/"engineering" type PDE system with MOL. Most (every?) example I have seen of the use of MOL...
**Question❓** Are big changes necessary to upgrade MOL so tht it works with the latest version of MTK?
Here is my model: This 1D model describes the flow of ideal gas in a pipe. I assume that inlet pressure $p_0$ is a known function of time, and that...