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Fix typo in calc.texi

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* doc/misc/calc.texi (Programming Tutorial): Fix a typo.
Suggested by Vladimir Nikishkin <lockywolf@gmail.com>.
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Eli Zaretskii 2023-06-03 09:14:44 +03:00
parent 03663b8798
commit 348e4504c6
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doc/misc/calc.texi
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@ -6217,7 +6217,7 @@ method when it is able. @xref{Programming Answer 8, 8}. (@bullet{})
@cindex Gamma constant, Euler's @cindex Gamma constant, Euler's
@cindex Euler's gamma constant @cindex Euler's gamma constant
(@bullet{}) @strong{Exercise 9.} The @dfn{digamma} function (@bullet{}) @strong{Exercise 9.} The @dfn{digamma} function
@texline @math{\psi(z) (``psi'')} @texline @math{\psi(z)} (``psi'')
@infoline @expr{psi(z)} @infoline @expr{psi(z)}
is defined as the derivative of is defined as the derivative of
@texline @math{\ln \Gamma(z)}. @texline @math{\ln \Gamma(z)}.