DLMF:4.34.E3
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Math Formula Information
Formula: Failed to parse (unknown function "\deriv"): {\displaystyle \deriv{}{z}\tanh@@{z}=\sech^{2}@@{z},}
Name: DLMF:4.34.E3
Description:
Data Source
https://lct.wmflabs.org/w/index.php?title=Special:EntityPage/Q1863