Cody

William

2
Rank
71
Badges
36225
Score
51 – 100 of 3,668

William submitted Solution 2113557 to Problem 45302. Ugly numbers - 03

on 1 Feb 2020 at 17:25

William submitted Solution 2113518 to Problem 45297. Ugly numbers - 02

on 1 Feb 2020 at 16:53

William submitted Solution 2113463 to Problem 45296. Ugly numbers - 01

on 1 Feb 2020 at 15:57

William submitted Solution 2113458 to Problem 45296. Ugly numbers - 01

on 1 Feb 2020 at 15:55

William submitted Solution 2113448 to Problem 45296. Ugly numbers - 01

on 1 Feb 2020 at 15:50

William submitted Solution 2108728 to Problem 45280. La derivada numérica

on 28 Jan 2020 at 16:29

William submitted Solution 2106431 to Problem 45277. Orthogonal Circles

on 26 Jan 2020 at 19:34

William submitted Solution 2106345 to Problem 45278. Orthogonal lines

on 26 Jan 2020 at 16:36

William submitted Solution 2106342 to Problem 45276. No of squares in a grid

on 26 Jan 2020 at 16:28

William submitted Solution 2106338 to Problem 45276. No of squares in a grid

on 26 Jan 2020 at 16:27

William submitted Solution 2106340 to Problem 45276. No of squares in a grid

on 26 Jan 2020 at 16:26

William submitted a Comment to Problem 45275. Solve Sudoku puzzle step by

Hello BinBin, This is a good problem! But I am wondering: In the test suite, shouldn't the statement "tt = mat2cell(s,[3,3,3],[3,3,3]);" be inside the for-loop?

on 25 Jan 2020 at 14:18

William submitted Solution 2094947 to Problem 45267. Zero

on 16 Jan 2020

William submitted Solution 2091821 to Problem 45250. Be happy

on 13 Jan 2020

William submitted a Comment to Problem 45250. Be happy

Asif, Yes, I looked at the information on non-trivial perfect digital invariants. Near the end of that reference, there is a short section entitled "Relation to happy numbers" that indicates that in order for a number to be happy, it needs to be a perfect digital invariant with the value of 1. In this case, the invariant is 8 (or 22 in base-3), so I interprete that as saying that it is a non-trivial PDI, but not happy.

on 10 Jan 2020

51 – 100 of 3,668