RPL Micro-Challenge: Christmas in July

[Gerson W. Barbosa]

(07-19-2017 01:42 PM)Dave Britten Wrote:  Oh, duh, I was doing COMB(x+2, x-1), completely forgetting about the symmetric nature of combinations.

I did that as well.

(x+2)!(x-1)!/6. (37.5 bytes)

COMB(x+2, x-1) (27.5 bytes)

COMB(x+2, 3) (20 bytes)

PS: Next, this "masterpiece" :-)

« DUP 2. + IDN →DIAG PCOEF SWAP GET ABS
» (38.5 bytes)