Elemental arithmetics; about Sqr(x^2)

[Piero]

For all of you that are interested: I converted the Python fsum function to Purebasic: viewtopic.php?t=82457

Interesting! Thanks

I worked a lot with """very low level""" programming LONG time ago (assembly, C, C++ etc...) but then, often seeing poor human beings (colleagues working with desktop publishing) doing repetitive, machine-like stuff for the most part of the working day, I become very interested in "automation", like applescript.........

This floats/doubles thing is for me just a curiosity I had forgotten, but made me remember when I used "very large numbers math libraries" because I was curious about primes...

If I wasn't so old, I bet I would call some of you "superfast assembly maniacs"...

PS: this also reminds me I can ask mk-soft questions about prime numbers (to send him to psychiatric hospital)

[jack]

For all of you that are interested: I converted the Python fsum function to Purebasic: viewtopic.php?t=82457

that thread has a couple of links which eventually led me to the HP Forums where the sum problem was posted, but what I found interesting is the website of one of the members Druzyek that was inquiring about the CORDIC method https://www.hpmuseum.org/forum/thread-12180.html his website is interesting and loaded with calculator related projects http://joldosh.blogspot.com/

[BarryG]

Code: Select all

Define b.d = 0.4
Define c.d = 0.8
Debug b+c

1.2000000000000001776356839

That's the correct internal result for calculations. When it comes time to display the result, you need to format it:

Code: Select all

Define b.d = 0.4
Define c.d = 0.8
Debug StrD(b+c) ; 1.2

[Piero]

you need to format it

Interesting! Thanks!
(I know: I'm being repetitive)