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Infinitesimal-notasjonen hjelper oss til å markere hvilken variabel vi deriverer med hensyn på når vi har utrykk med flere bokstaver/symboler og det ikke er gitt hvilke av bokstavene/symbolene som er gjeldende variabel.

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Deriver funksjonene under.

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Hint: For å skrive inn f.eks. $\\frac{1}{x^3}$ bør man skrive 1/(x^3), for å skrive inn $\\cos^2x$ bør man skrive (cos(x))^2, og når du trenger å skrive inn produktet av to \"bokstaver\" $xh$ bruk * mellom: x*h

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Uttrykket $\\dfrac{d f}{d\\var{inp2}}$ leses som \"$f$ derivert med hensyn på $\\var{inp2}$\". Når $\\dfrac{d}{d\\var{inp2}}$ står foran noe, er meningen at uttrykket bak skal deriveres med $\\var{inp2}$ som variabel.

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$\\dfrac{d}{d\\var{inp1}}(\\simplify{{inp1}^{k1}+{k2}})=$[[0]]

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$\\dfrac{d}{d\\var{inp3}}(\\simplify{{inp2} {inp3}^{k3}+{inp3}^{k4}})=$[[0]]

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