HP 17bii+ solver problem, another solution « Next Oldest | Next Newest »

 ▼ Don Shepherd Posting Freak Posts: 1,392 Threads: 142 Joined: Jun 2007 03-17-2007, 08:52 PM A few weeks ago I posted this solver equation that would not work on the 17bii+ (although it apparently worked on the older 17bii): sumofdigits=sigma(i:0:log(n):1:mod(n:10)+0xL(n:ip(n/10))) A fellow forum member (as well as an HP rep) offered a solution that worked, but it involved defining and using another variable and using it in place of n. Today I determined that the offending part of the original equation was the *ip*(n/10), and I found that the following solution also works (and does not require a second variable): sumofdigits=sigma(i:0:log(n):1:mod(ip(n):10)+0xL(n:n/10)) Interesting.

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