**From:** Andreas Prilop (*nhtcapri@rrzn-user.uni-hannover.de*)

**Date:** Thu Apr 20 2006 - 09:46:10 CST

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On Thu, 20 Apr 2006, Deborah Goldsmith wrote:

*> To differentiate it for purposes of representing mathematics in plain
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*> text.
*

Planck's constant is physics, not mathematics.

*> U+1D452 MATHEMATICAL ITALIC SMALL E
*

This is not specifically the elementary charge.

*> U+1D450 MATHEMATICAL ITALIC SMALL C
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This is not specifically the speed of light.

*> U+1D6FC MATHEMATICAL ITALIC SMALL ALPHA
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This is not specifically the fine structure constant.

*>> So what's this U+210E for?
*

*>
*

*> The same thing as the others: plain text representation of
*

*> mathematics. Note that there is not a MATHEMATICAL ITALIC SMALL H
*

*> precisely because U+210E exists.
*

Do you mean U+210E should be used as a "*general* mathematical

[or physical] italic small h"?

Should it be used for, say, height?

Should it be used for, say, specific enthalpy?

If so, then U+210E is *not* Planck's constant.

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