Array.appendfunction(Function|Array of Functions[,param1,param2,...])
Adds a column which the result of this function on the remaining row. Works best when array is two dimensional.
[ [ 1,3,4 ] ].$$F(SUM)
| 1 | 3 | 4 | 8 |
[ [1,3,4 ] ].$$F(SIN)
| 1 | 3 | 4 | 0.8414709848078965 | 0.1411200080598672 | -0.7568024953079282 |