4:
3: [ [ 7 6 5 ]
[ 1 0 0 ]
[ 2 1 3 ] ]
2: "a string"
1: { 2 3 5 7 11 } |
we want to compute roots of a complex numbers : i^(1/3), These are 3 roots.
how to do ?
Run RPNenh, type (0;1) ( this is i )
now, type 3, use the 1/x (to compute 1/3).
and finally press the x^y key to get the result :
{ (0,866025…;0,5) (-0,86602…;0,500000…) (0;-1) }
Now press this 
button to swap into smart display mode.
Look, the result is now displayed like this :{ (sqr(3)/2;1/2) (-sqr(3)/2;1/2) (0.;-1.) }Yeah ! in few keystrokes you get all roots (not only the first one like most other calulators).
The 3 roots are : -i and ( ± √(3)/2 ; 1/2 ) , that's correct.
