**Widget usage example #19: DecimalJS (arbitrary precision decimal numbers)**

(a GUI to the JavaScript library "Decimal.js")

https://github.com/MikeMcl/decimal.js/

The library and the api-doc is included in the stack, so that an offline usage is possible.

I added a javaScriptHandler that yields a notebook-like interface for close to no javaScript knowledge.

I added also functions "factorial" and "factors", so you can compute for example the prime factors of factorial(77) = 77*76*...*3*2*1 = 145183092028285869634070784086308284983740379224208358846781574688061991349156420080065207861248000000000000000000 = (2^73)*(3^35)*(5^18)*(7^12)*(11^7)*(13^5)*(17^4)*(19^4)*(23^3)*(29^2)*(31^2)*(37^2)*41*43*47*53*59*61*67*71*73

which is, for example, the number of different orders of 77 queued objects.