HP 50G for Maths (My experiences)

[Joe Horn]

(04-12-2019 01:32 PM)edryer Wrote:  ... Also entering a 3X3 Matrix by simply [[1 2 3][4 5 6][7 8 9]] (and without shifting [] with a custom key) makes entry supremely fast (and Vectors trivial). That is something that allows me to enter a 3X3 (or greater) whilst other Calculators will have you fiddling around with all sorts of key presses. ...

Keyboard shortcut: Only the first pair of square brackets are required when keying a matrix onto the command line. That is to say, you can key your 3×3 example this way, using the arrow key between 3 and 4:

[[ 1 2 3 ] 4 5 6 7 8 9 ENTER

Saves a few keystrokes.