Subject:
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RE: NQC with C++ header file
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 25 Oct 2000 12:40:18 GMT
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Viewed:
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731 times
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> What specifically do you have in mind? The limitation is going to be
> from the firmware bytecodes...no floating point, no transcendentals, no
> math larger than 16 bits.
>
> Switching over to legOS would give you floating point, but still no
> transcendentals.
Bah! We don't need no stinkin floating point. Here are a few approximations
to real and transcendental numbers that you can make by dividing
signed integers - the error is gennerally less that 1 in 1,000,000
pi 355 /113
sqrt(2) 19601 / 13860
e 28667 / 10546
c 24559 / 8192
By the way, there's a discussion on fixed point mathi in my pbForth chapters
in the new Extreme Mindstorms book. And I think Luis has some info on
floats using legOS
Cheers,
Ralph Hempel - P.Eng
--------------------------------------------------------------------
Check out pbFORTH for LEGO Mindstorms at:
<http://www.hempeldesigngroup.com/lego/pbForth>
Buy "Extreme Mindstorms: an Advanced Guide to Lego Mindstorms"
<http://www.amazon.com/exec/obidos/ASIN/1893115844/hempeldesigngrou>
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Reply to: rhempel at bmts dot com
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Message is in Reply To:
 | | Re: NQC with C++ header file
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| (...) What specifically do you have in mind? The limitation is going to be from the firmware bytecodes...no floating point, no transcendentals, no math larger than 16 bits. Switching over to legOS would give you floating point, but still no (...) (24 years ago, 25-Oct-00, to lugnet.robotics)
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