David A Roberts

SymPy inserts Piecewise by default

1

**Is your feature request related to a problem? Please describe.** Not sure if this is a bug so much as a difference in default behaviour between SymPy and WMA. WMA...

Convert RootSum to SymPy

1

I split this out into a separate PR as I think it's going to require some more work. We already had a SymPy -> Mathics conversion for RootSum, this adds...

## Description Currently, RealDigits uses `N[]` to evaluate to the necessary precision before extracting digits. However, this involves rounding to the nearest digit, which differs from the behaviour of RealDigits...

Pyodide/marimo support

28

Mathics *very nearly* supports [Pyodide](https://pyodide.org/en/stable/). I put together a quick demo of this in [marimo](https://marimo.io/), which uses pyodide to run Python notebooks entirely in a web browser, without requiring a...

Unknown error code: Unknown message

5

Something in matrix-js-sdk keeps throwing an exception that just says `Unknown error code: Unknown message`, which isn't particularly helpful. The stack trace only contains `node_modules/olm/olm.js:19`, which seems to appear in...

Memory exhaustion calculating very large integers

7

**Is your feature request related to a problem? Please describe.** The following program from https://oeis.org/A000643 causes mathics to use over 10GB of RAM, and I end up having to kill...