Attempted to run a lab in the beta and got an error saying "first open a lab".
Lab: A J Introduction
To advance the lab, select menu Help|Studio|Advance or the
corresponding shortcut.
── Chapter 1 J ──────────────────────────────────────────────
── ((1) 1 of 16) Introduction ───────────────────────────────
J is executable mathematical notation.
The fourteen chapters of this lab illustrate its use in
experimenting with mathematical ideas in a variety of
topics.
To clarify ideas, enter your own experiments (which you may
do at any point).
)
2+3
5
x=: 2
y=:3
x+y
5
first open a lab
JVERSION
Engine: j9.8.0-beta6/j64avx2/windows
Build: commercial/2026-07-20T22:28:35/clang-19-1-5/SLEEF=1
Library: 9.8.6
Qt IDE: 2.6.3/6.10.3(6.10.3)
OS Ver: Windows 11 Version 25H2 10.0.26200
Platform: Win 64
Installer: j9.8 install
InstallPath: c:/j9.8beta
Contact: www.jsoftware.com
