Re: constants.vams

Geoffrey.Coram wrote:

>Kevin Cameron wrote:
>
>
>>>2) Planck's constant is listed as P_K, which conflicts with the
>>>definition of Boltzmann's constant; I believe the macro should
>>>be P_H.
>>>
>>>
>>>
>>You could add P_H - removing P_K would probably be a bad idea, and
>>changing P_K to be something else would be a very bad idea. Maybe
>>add a comment the P_K will be deprecated.
>>
>>
>
>No, the problem is that Boltzmann's constant is defined as P_K
>and then three lines later, Planck's constant uses the same
>macro identifier.
>
>
Oops - thought you meant it was a Spice translation issue :-)

>>If the constant definitions are wrong I would certainly vote for fixing
>>them ASAP.
>>
>>
>
>The error is in the 20th digit of M_TWO_PI, and since we're
>using IEEE (754?) floating point, this won't make any difference
>in the simulations.
>
>The changes in the physical constants are within the error
>bars on the constants.
>
>But the P_H/P_K and P_U0 are definite problems. It seems
>that no one could possibly be using the file as is.
>
>
That probably means it's been fixed but the changes havn't been
propagated back to the committee.

Anybody want to post their version of the file for comparison?
(Cadence/Mentor/Motorola/Synopsis...?)

Kev.

>-Geoffrey
>
>

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