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[HP-12C] Angular coefficent from linear regression off by 1
05-02-2016, 12:30 PM
Post: #7
RE: [HP-12C] Angular coefficent from linear regression off by 1
(05-02-2016 12:09 PM)Marcio Wrote:  You nailed it.

OK – so you did a manual calculation to obtain slope and intercept. This was not clear to me reading your first post where you said that "the 12C used the same algorithm as the 15C". That's why I expected the 12C to offer a built-in L.R. function, like the 15C. In fact the 12C manual suggests a manual method similar to Werner's to obtain the two coefficients. This of course explains why the result may be off by a ULP or two. #-)

Now, what about a short program that calculates slope and intercept directly from the sums in R1...R6 ?-)

Dieter
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RE: [HP-12C] Angular coefficent from linear regression off by 1 - Dieter - 05-02-2016 12:30 PM



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