Electronics Computer-Aided Design Re: Tri to Sine diode shaper

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Subject Author Date
Re: Tri to Sine diode shaper Joel Koltner 06-16-08
Posted by Joel Koltner on June 16, 2008, 11:53 am
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> Yes, it's a pretty good book attached to some reasonably functional although
> sometimes ugly code.

I have a suspicion that all those high-powered math guys who initlally created
the contents are often long gone and they're just hiring some generic
programmers to port it from language to language, using some sort of
regression testing to make sure nothing gets broken in the process.

Not to mention they have some bizarre licensing scheme where just buying the
book doesn't entitle you to use the printed code -- that's a separate
purchase!

I suppose it's still cheaper than Matlab with the appropriate toolboxes...



Posted by John Devereux on June 16, 2008, 1:55 pm
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>> Yes, it's a pretty good book attached to some reasonably functional although
>> sometimes ugly code.
>
> I have a suspicion that all those high-powered math guys who initlally created
> the contents are often long gone and they're just hiring some generic
> programmers to port it from language to language, using some sort of
> regression testing to make sure nothing gets broken in the process.
>
> Not to mention they have some bizarre licensing scheme where just buying the
> book doesn't entitle you to use the printed code -- that's a separate
> purchase!

That was the major disappointment for me. The book is not cheap,
then they *still* want money off you if you use the contents!

--

John Devereux

Posted by Phil Hobbs on June 16, 2008, 3:24 pm
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John Devereux wrote:
>
>>> Yes, it's a pretty good book attached to some reasonably functional although
>>> sometimes ugly code.
>> I have a suspicion that all those high-powered math guys who initlally
created
>> the contents are often long gone and they're just hiring some generic
>> programmers to port it from language to language, using some sort of
>> regression testing to make sure nothing gets broken in the process.
>>
>> Not to mention they have some bizarre licensing scheme where just buying the
>> book doesn't entitle you to use the printed code -- that's a separate
>> purchase!
>
> That was the major disappointment for me. The book is not cheap,
> then they *still* want money off you if you use the contents!
>

There's a whole pile of better numerical code out there, once you figure
out what you want to do--I bought the floppy disc back in the day, which
entitled me to use it myself. I've been doing that for about 15 years,
which makes it pretty cheap at the price.

Cheers,

Phil Hobbs

Posted by John Devereux on June 16, 2008, 5:36 pm
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> John Devereux wrote:
>>
>>>> Yes, it's a pretty good book attached to some reasonably
>>>> functional although sometimes ugly code.
>>> I have a suspicion that all those high-powered math guys who
>>> initlally created the contents are often long gone and they're just
>>> hiring some generic programmers to port it from language to
>>> language, using some sort of regression testing to make sure
>>> nothing gets broken in the process.
>>>
>>> Not to mention they have some bizarre licensing scheme where just
>>> buying the book doesn't entitle you to use the printed code --
>>> that's a separate purchase!
>>
>> That was the major disappointment for me. The book is not cheap,
>> then they *still* want money off you if you use the contents!
>>
>
> There's a whole pile of better numerical code out there, once you
> figure out what you want to do--I bought the floppy disc back in the
> day, which entitled me to use it myself. I've been doing that for
> about 15 years, which makes it pretty cheap at the price.

I've just reread the available licenses (in the book). They appear to
want to license per instance of any algorithm used from the book.

Prices from $65 per instance...

Actually they say "per screen". So I guess it is free for my embedded
systems after all :)

--

John Devereux

Posted by Phil Hobbs on June 16, 2008, 10:42 pm
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John Devereux wrote:

>> There's a whole pile of better numerical code out there, once you
>> figure out what you want to do--I bought the floppy disc back in the
>> day, which entitled me to use it myself. I've been doing that for
>> about 15 years, which makes it pretty cheap at the price.
>
> I've just reread the available licenses (in the book). They appear to
> want to license per instance of any algorithm used from the book.
>
> Prices from $65 per instance...
>
> Actually they say "per screen". So I guess it is free for my embedded
> systems after all :)
>

I have no intention of ever using it in a product. NR has probably
saved me 6 months' work over the years, so that sum is completely
reasonable for development purposes.

Cheers,

Phil Hobbs

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