Use same Root-object in row-objects as in this.roots. Add get command.
Motivation for signs by clicking from available options.
Motivations and signs clickable and changeable. Can set and get all data.
getSign() has to return '' for unset sign and getMot() returns 0 for unset motivation.
Motivation selector, interval selecting, editmode/viewmode, toolbar
Simple latexeval for evaluating mathematical expressions given in latex form without variables.
Tweaks on latexevaluator.
Tinkering with adding rows.
Plus and minus signs for whole "block" with one click.
Only one total row.
Expression on total row editable.
Addrow dialog position absolute.
Amount of roots clickable.
Added:
  * support for marking undefined rootpoints
  * removing rows
  * adding new rows with 0, 1 or 2 roots
  * different examples in index.html
Added calls for changed() -method to trigger 'pssc_changed'-event to
notify surrounding application about changes. (So that application can
for example save the signchart.)
* Labels of roots rewritten as <thead>. More robust.
* Added commands for jQuery-plugin for doing changes one by one.
* Motivation images included in embedded css as base64 encoded data.
* Small tweaks on css.
* Minimized version.
Added the inequality on the row of intervals. Inequality is clickable
and clicking changes the relation. Relations are circulated between
'<', '>', '\leq' and '\geq'.
Small fixes. Remove intervals, when the last row is removed. Bind esc-key on addbox to close it.
Highlight the relation on inequality. Small fixes on relation change.
Change add/remove rows so that they are always visible.
Change the background of undefined points from white to yellow.
Small fixes:
 * The changes on the last interval didn't get saved.
Repair "moving" intervals, rootpoints, undefinedpoints and even signs.
Arrays had empty spaces with some indexes, like:
 var aaa = ['a',,'b'];
JSON.stringify() didn't work with sparce arrays:
 JSON.stringify(aaa) === '["a","b"]'
Added "" as the default value for empty spaces.
Correct icon for downwards parabel with no roots.
Styling cleared:
- Empty table marked with "empty symbol"
- No button for motivations in view mode
- Other small tweaks
View mode:
- Links ('<a>') replaced with spans
Added optional title for the signchart.