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I want to use the blackboard fonts of the kpfonts package. Also I would like to scale them. Note in the newtxmath package we have the option of scaling. So generally I scale it by "1.1" factor.

I tried looking at the boondox package which actually incorporates different blackboard fonts. But this is not helping me much.

Thanks

  • Have you tried ` \DeclareMathSizes {t-size} {mt-size} {s-size} {ss-size}` as explained here? Or do you want to scale only a few symbols? – Biswajit Banerjee May 21 '16 at 6:18
  • Just want to scale bb symbols – crskhr May 21 '16 at 6:25
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Usually it's the other way around: how to get other blackboard bold fonts instead of those provided by kpfonts. ;-)

Here's a way: find out what font family contains the characters, extract the information from the .fd file and add the scaling feature. Don't worry, I did it for you. ;-) Just decide what magnification factor you want instead of 1.3.

\documentclass{article}

\DeclareFontFamily{U}{jkpsyb}{}
\DeclareFontShape{U}{jkpsyb}{m}{n}{<-> s*[1.3] jkpsyb}{}
\DeclareFontShape{U}{jkpsyb}{bx}{n}{<-> s*[1.3] jkpbsyb}{}

\DeclareMathAlphabet{\mathbb}{U}{jkpsyb}{m}{n}
\SetMathAlphabet{\mathbb}{bold}{U}{jkpsyb}{bx}{n}

\begin{document}

$X\mathbb{R}Y$

\boldmath $X\mathbb{R}Y$

\end{document}

enter image description here

  • Thank you for the wonderful answer :). Em, what is this 2301 under ur 477k rep points?? – crskhr May 21 '16 at 10:33
  • @S.C. The bronze badges ;) – egreg May 21 '16 at 12:05
  • Oops it came in the next line so was confused ;). Thanks once again for the answer though – crskhr May 21 '16 at 12:08

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