Matematyka
$f\left(d, g, o, p, t, x\right) =$ | ${\mathrm{e}}^{2}{\cdot}\mathrm{{i}^{\color{#a0a0a0}{\href{http://en.wikipedia.org/wiki/Imaginary_unit}{?}}}}{\cdot}dg{o}^{2}pt-x$ |
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$\dfrac{\mathrm{d}\left(f\left(d, g, o, p, t, x\right)\right)}{\mathrm{d}x} =$ |
$\class{steps-node}{\cssId{steps-node-1}{\tfrac{\mathrm{d}}{\mathrm{d}x}\kern-.25em\left({\mathrm{e}}^{2}{\cdot}\mathrm{{i}^{\color{#a0a0a0}{\href{http://en.wikipedia.org/wiki/Imaginary_unit}{?}}}}{\cdot}dg{o}^{2}pt-x\right)}}$ $=\class{steps-node}{\cssId{steps-node-2}{-1}}$ |