Variables & Line References
Because words make more sense than un-named numbers.
Declaring a variable
Soulver lets you create variables.
Declare a variable with the equals symbol '='.
A variable can be a single word, or an entire phrase (with spaces).
You can't use a variable before it has been declared.
This behaviour matches most programming languages, but differs from Soulver 2.
Changing variables' values
A variable can be redefined by giving it a new value.
The most recently defined value will be used on subsequent lines.
You can 'peek' at a variable's current value by holding down the shift key, and hovering over the variable.
Auto-completing
Instead of typing out a long variable name, you can hit the escape key and return to auto-complete the variable.
Global variables
To add a variable that works across all your sheets, go to Settings > Calculator > Global Variables and add a new variable by clicking the plus button.
Line References
Soulver lets you reference previous lines' answers in your calculations, like a spreadsheet. You can go back and edit a previous line, and any lines that refer to will recalculate automatically.
To reference a previous line:
1. Drag in the answer from the line you want to reference:
You can also just double click the answer to insert a reference to it
2. Type an operator (like +) immediately after typing return to start a new line:
You can also insert a reference to the previous line using the keystroke ⌘\.
Note: you can only reference a line above your current line.
If you want to disable a reference, but keep an expression in its current state, you can right-click on a reference and choose 'Unlink'.
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