Pochodna funkcji 1/ln(h)

$f\left(h\right) =$	$\dfrac{1}{\ln\left(h\right)}$
$\dfrac{\mathrm{d}\left(f\left(h\right)\right)}{\mathrm{d}x} =$	$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathrm{d}}{\mathrm{d}x}\kern-.25em\left(\dfrac{1}{\ln\left(h\right)}\right)}}$ $=\class{steps-node}{\cssId{steps-node-2}{0}}$

$f\left(h\right) =$

$\dfrac{1}{\ln\left(h\right)}$

$\dfrac{\mathrm{d}\left(f\left(h\right)\right)}{\mathrm{d}x} =$

$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathrm{d}}{\mathrm{d}x}\kern-.25em\left(\dfrac{1}{\ln\left(h\right)}\right)}}$

$=\class{steps-node}{\cssId{steps-node-2}{0}}$