Formulas!!! I think it should be part of the core and can highly recommend it.
On Thursday, August 23, 2018 at 11:35:38 AM UTC-5, Guille Rmo wrote: > > Thanks Tony. > > I have googled a bit and found these alternatives to this same need: > > http://mathcell.tiddlyspot.com/ > http://rboue.tiddlyspot.com/#SocialCalc/introduction > http://evanbalster.com/tiddlywiki/formulas.html > > These are quite awesome already. I really liked SocialCalc, and mathcell > uses native eval which is not great. > > I think math.js is great and is good enough to be taken as a standard for > TW, for evaluating math expressions, however SocialCalc solution is great > as it is. > > > El miércoles, 22 de agosto de 2018, 22:52:41 (UTC-6), TonyM escribió: >> >> Guille Rmo >> >> Thanks for sharing your work. Increments have being difficult in >> TiddlyWiki, this works good as a button counter. >> >> You may be interested in the new range operator coming in V 5.1.18 >> >> Regards >> Tony >> >> On Thursday, 23 August 2018 04:14:47 UTC+10, Guille Rmo wrote: >>> >>> I found math.js >>> <https://groups.google.com/forum/#!topic/tiddlywiki/cPq72e4x1f8> plugin >>> for tw a while ago. However I didn't managed to do what I wanted with it. I >>> wanted to set a field value with a math expression. I remember I managed to >>> do it with a macro and a $set variable, but I think that is not very clean. >>> Instead, I thought that making an alternative action-setfield widget was >>> the right thing to do. So I took @mklauber plugin and wrote the widget. >>> >>> See the following examples to get an Idea of what is possible with this: >>> >>> This button raises the field "test2" to the power of 2 each time it is >>> clicked: >>> >>> <$button> >>> <$action-setfield-mathjs $tiddler=<<currentTiddler>> $field="test2" >>> $eval="test2^2" /> >>> Click to raise <b>{{!!test2}}</b> to the power of 2 >>> </$button> >>> >>> You can also manipulate data tiddlers. In the following, the data >>> tiddler [[ExampleData]] is updated with math operations: >>> >>> <$button> >>> <$action-setfield-mathjs $tiddler="ExampleData" $index="y" $eval="y+1" /> >>> Click to increment y ( {{ExampleData##y}} ) >>> </$button> >>> >>> <$button> >>> <$action-setfield-mathjs $tiddler="ExampleData" $index="x" $eval="x+1" /> >>> Click to increment x ( {{ExampleData##x}} ) >>> </$button> >>> >>> >>> The tiddler fields or the data tiddler indexes are set as the math.js >>> scope, so you can use the names in the math.js expressions. >>> >>> The main motivation for this was having a simple increment button :) But >>> it is quite powerful. Hope you can come up with great use cases for this. >>> >>> The demo is here: >>> https://cdn.rawgit.com/Guitlle/tiddly-mathjs/build/tmp.html >>> >>> >>> -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/b59bfded-11c7-4127-8644-7479c3354ca6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
