After a few days of regular use, I still like this a lot. And I think a lot of little things (like highlighting input for copy/paste) have improved since the double-click-to-show-input has been disabled.

The "code folding" triangles are great.

Here's the "but." For a cell with %md, %html, %latex I think that you generally do not want to see the input. You routinely want to go back and edit it, and you can use a triangle to do that intuitively, reliably and predictably.

This is in contrast to a "compute" cell, such as default sage, or say %python where maybe you want to see input and output simultaneously. The distinction is the "text" cells have an ugly representation on input and nice representation on output, and their content is identical.

I warned my students about the change and *told* them to hide the input for their explanations of their Sage exercises. I still got several worksheets with all of these inputs open, which was a bit maddening to read through and/or close them all. Another student went too far and hid all his Sage code, which meant I *had* to open all those.

Yes, you can put %hide into each such text cell.

Suggestion: Execute a %md, %html, %latex and that automatically hides the input. For subsequent edits, the user can hit the triangle. (Or this behavior is configurable as an editor setting).

But maybe I am in the minority and most people want all input cells open all the time until they choose to hide them. There are times you want hide a compute cell, but I think these are more typically set-up code, completed interacts, or code producing elaborate graphics, and may be rarer?

Rob

On 09/27/2016 04:42 PM, William Stein wrote:
Hi,

After getting too tired of people saying things like "I'm getting
crazy with cells becoming hidden in a way I'm not in full control." I
just rewrote how cell input/output hiding works.  Now there is a
little toggle triangle in the very left column next to the input cell
divider, and also next to the output.  That's how you toggle
visibility of input and output.

Do %md or %html doesn't automatically "magically" hide anymore.
Double clicking on the output doesn't do anything anymore.    It's
simple, straightforward, and you are in control.

Enjoy,

  -- William


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