MaplePrimes - answers and comments on Question, saving worksheets?

Re-execute

Tim Vrablik — Thu, 28 Aug 2008 00:56:01 Z

All of your information is still there and assigned, you just need to re-execute your worksheet. Just hit the triple exclamation button (!!!) at the top and all of your commands will be re-executed. You can then cary on with all of your information

save and read

acer — Thu, 28 Aug 2008 01:27:46 Z

If you don't mind waiting for the entire worksheet to re-execute, then the "!!!" button or top menubar's "Edit"->"Execute"->"Worksheet" actions should suffice.

However, some key parts of a worksheet might take a great deal of time to execute, if heavy computations are involved. And re-execution of the whole worksheet might then be undesirable. Sometimes one would like to be able to change certain values, or plot options, etc, and re-run only some subset of an existing worksheet.

So, there's a distinction, between expensive parts that you don't want to re-execute, and interactive parts that you might like to call once again. Re-executing the entire worksheet doesn't allow for this distinction.

The commands `save` and `anames` can be used to save Maple's "state" (or parts of it). The state can be saved into a file, and then re-read quickly back into a new session with an explicit `read` command. But such state files are distinct from worksheets. The worksheet itself doesn't have the complete state bundled up within it.

The Standard GUI can prompt you about whether to bundle large amounts of plot data (that sit behind the scenes) into a worksheet. That's a bit of an exception to the rule.

Hmm. I wonder whether one could create an auto-opening .mla archive, whose load action reads a .m state file as well as opens a worksheet. Maybe it'd have to rely on -kp or a shared kernel.

acer

Auto-execute

srozek — Thu, 28 Aug 2008 19:56:35 Z

In addition, you can set certain parts of the worksheet to auto-execute when it is opened. In this way, you can specify which commands to run and possibly which to avoid. Set your cursor somewhere inside the command line and select Format>AutoExecute>Set (or Clear, if you want to revert). If you turn Markers on (View>Markers) you will notice an icon on the left telling you the auto-execute is set for that command.

- Stephanie