[tarekayna]

Thanks :). This was around 7 months of mornings and weekends while I had a full-time job. (I quit a month ago to start my own thing).

I built this with JS/HTML/CSS but the MathEngine component I built using C# (.winmd) and called into it from the Javascript.

If you have any specific questions about how different parts are implemented, let me know :).

[Ralz]

Same I left MSFT in March to do my own thing! Not just this Windows App tho, it was just a side project while I failed at a startup earlier this year.

I was just thinking that with the state of the how APIs were last year this would have been very tough to do, so I was wondering if you went the JS route since it was in better shape than XAML.

[tarekayna]

Nice, I used to work for MS too :).

I actually went the JS route because of my skillset. I was was web-dev before I joined MS and never got into XAML much.

The JS platform was pretty stable from the initial public release, I guess that's because it is built on top of IE which has been around much before Win8 came along.