Incorrect Boltzmann constant in MATLAB?

7 次查看（过去 30 天）
Felix Neko
Felix Neko 2017-1-30
评论： Jan 2017-2-11
AFAIK, the Boltzmann constant is incorrect in MATLAB.
Let's check it out:
k = physconst('Boltzmann');
and let's look at this variable k in our Workspace:
1.380650400000000e-23
And now let's look at what does Wikipedia offer (based on CODATA 2014).
1.38064852(79)e10−23
Is it going to be somehow fixed in future releases?
  2 个评论
Torsten
Torsten 2017-1-30
Physical constants "change" from year to year ...
Best wishes
Torsten.
Honglei Chen
Honglei Chen 2017-1-30
Like Torsten said, those constants change over time due to new measurements. I would second Jan's proposal below to send in an enhancement request.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2017-1-30
编辑：Jan 2017-1-30
There are many sources for the value 1.3806504 also: Wiki: Knudsen number, constants.h file of the StepCore library, several books, e.g. The Feynman Lectures on Physics. I assume the value from http://physics.nist.gov/cgi-bin/cuu/Value?k (this is the source of the value posted in WikiPedia) is newer and more accurate. Please send an enhancement report to Mathworks.
  2 个评论
Felix Neko
Felix Neko 2017-2-10
编辑：Felix Neko 2017-2-10
I've never sent enhancement reports before. How can it be done?
Jan
Jan 2017-2-11
I'd start at https://www.mathworks.com/support/contact_us/, go through "Create Service Request" and then the category "suggestions" seems to be fine. I'm not sure if this is teh best way, but TMW is very smart and they forward messages to the right person internally.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with MATLAB 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by