Tools and Interfaces

Here we highlight some particularly useful settings, menu items and tools in Dyalog.

Session Toolbelt

These tips work in Dyalog on any supported platform.

🛠 Place the cursor on a symbol or other built-in and press F1 to go straight to the help page for it.

🛠 By default, printing to the session from within a function has ]boxing off.

      {⎕←⍳⍵}3 3
 1 1  1 2  1 3 
 2 1  2 2  2 3 
 3 1  3 2  3 3 
      ]box -fns=on
Was -fns=off

🛠 Sometimes we generate large output which clutters the session log.

      ]rows -fold=3
was -fold=off
      ⍪⍳100

🛠 Use ⎕SE.Dyalog.Utils.repObj myArray to generate an expression for (almost) any given array.

🛠 use Ctrl+Enter to step through a multi-line function line-by-line.

🛠 Use Shift+Enter to edit a suspended function. This is also a shortcut for )ED Function.

🛠 While in the editor, use the numpad forward-slash / key to align code.

🛠 Use Ctrl+Shift+Backspace and Ctrl+Shift+Enter to scroll backward and forwards in your input history. They can also be used as Undo and redo in the editor.

🛠 Press Esc to close the editor and fix the function.