Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
DLMF:4.21#Ex3 - MaRDI portal

DLMF:4.21#Ex3 (Q1961)

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DLMF:4.21#Ex3
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    d z = 2 1 + t 2 d t . 𝑧 2 1 superscript 𝑡 2 𝑡 {\displaystyle{\displaystyle\mathrm{d}z=\frac{2}{1+t^{2}}\mathrm{d}t.}}
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