To save the equations and/or variables to a named file, tap the "File..." button, choose "Save Algebra" and follow the prompts, or use the "save" command.
The "save" command is used to write a snapshot of all or part of the current problem state to a specified file. One of the following keywords must be used to determine what will be saved:
| equations | Save only the set of stored equations |
| variables | Save only the set of evaluated variables and locks |
| all | Save all stored equations, evaluated variables, and locks |
A save file can be "load"ed back into the program to restore the saved data.
The snapshot file is a plain, ASCII text file containing the currently defined variables, locks, and/or equations... It is essentially a sequence of variable, lock, and/or equation definitions formatted as valid program input.
Warning: The "save" command unconditionally overwrites the named file if it already exists!
If the program ever encounters an unrecoverable error and abnormally terminates, it automatically executes the "save" command to save a snapshot of the workspace to a file named "abort.eqn". This allows at least some recoverability of work that otherwise might have been lost.