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seen Oct 21 at 12:43

I'm old. I get confused. OK?


Aug
31
awarded  Supporter
Aug
31
comment What's the simplest curve that has an inflection point at zero and is asymptotic at 100.0?
Yeah, I'm looking at that. 100*(1 - exp(x*7/50)) comes close, but, while x=0.5 yields roughly 50 (which I want), we get to 99 at around x=32, whereas I'd like it to be closer to x=50 or 75. So I'm open to some other "simple" equations.
Aug
31
asked What's the simplest curve that has an inflection point at zero and is asymptotic at 100.0?
Aug
17
awarded  Scholar
Aug
17
accepted Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
Aug
17
awarded  Commentator
Aug
17
comment Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
Well, I'm going to give Didier the "answer", since he's contributed a lot. I'd still like to hear a few other ideas, though.
Aug
10
revised Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
added 142 characters in body
Aug
10
revised Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
added 218 characters in body
Aug
10
comment Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
Hmmm.... There was a third answer that went away before I could work through it.
Aug
9
revised Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
added 656 characters in body
Aug
9
revised Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
added 656 characters in body
Aug
9
comment Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
@Ross Millikan -- Looks good, thanks!
Aug
9
comment Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
@Ross Millikan -- Correct, which is why it doesn't extend nicely above 1.0.
Aug
9
comment Number of even numbers with sum of digits less than 12
(I never was that good at math.)
Aug
9
comment Number of even numbers with sum of digits less than 12
Ah, missed that point too.
Aug
9
comment Number of even numbers with sum of digits less than 12
Less than 12, or 12 or less?
Aug
9
revised Number of even numbers with sum of digits less than 12
added 160 characters in body
Aug
9
answered Number of even numbers with sum of digits less than 12
Aug
9
revised Need mathematical function for “adding” 0.5 and 0.5 and getting 0.4
added 102 characters in body