矩陣相乘，例如:
中間的dot, 就是鍵盤上的小數點，不是 LaTeX 的 \cdot。
叫用 Mathematica 執行，Alt-M Q.
-
cf: https://www.tenforums.com/tutorials/101274-uninstall-printer-driver-windows-10-a.html Open cmd in administer mode Run printmanagement...
-
cf: https://forums.raspberrypi.com/viewtopic.php?t=278033 For linux: First run the command: route -n It will show the metrics of the i... -
cf: https://askubuntu.com/questions/1276111/error-upgrading-grub-efi-amd64-signed-special-device-old-ssd-does-not-exist sudo mv /var/cache...