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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. 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/9d915a59-fa3c-4226-be4b-447fbfa29812%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
