G N U P L O T
Version 5.2 patchlevel 8 last modified 2019-12-01
Copyright (C) 1986-1993, 1998, 2004, 2007-2019
Thomas Williams, Colin Kelley and many others
gnuplot home: http://www.gnuplot.info
faq, bugs, etc: type "help FAQ"
immediate help: type "help" (plot window: hit 'h')
Terminal type is now 'wxt'
gnuplot> plot sin(x)
Unable to init server: Could not connect: Connection refused
19:59:45: Error: Unable to initialize GTK+, is DISPLAY set properly?
Failed to initialize wxWidgets.
Terminal type is now 'unknown'
wxt init failure
gnuplot>
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If you are using original WSL, see [What's the easiest way to run GUI apps on Windows Subsystem for Linux as of 2018?](https://askubuntu.com/questions/993225/whats-the-easiest-way-to-run-gui-apps-on-windows-subsystem-for-linux-as-of-2018). Otherwise [Are there any limitations in working in Ubuntu in Windows Subsystem for Linux on Windows 10?](https://askubuntu.com/q/1247438/178692). Alternatively, set the gnuplot terminal type to one of the may file-based types (png, eps etc.) and copy the resulting file to your Windows system to display it. – steeldriver Jun 08 '20 at 14:53