sqrt(-120!) = 0+2.5864073371085860456e+99i

node v8.17.0

version: 2.0.0

const { Stack } = require('@hypercubed/f-flat'); const f = new Stack(); f.eval('math: rcl use 100 set-precision').stack.toString();

Create a new F-Flat stack environment, use the "math" module.

f.eval('120 !').stack.toString();

Calculate factorial of 120.

f.eval('-1 * sqrt').stack.toString();

Change sign and calc sqrt!