Hi(adsbygoogle = window.adsbygoogle || []).push({});

Maybe I don't see the wood because of all the trees, but:

You have a second derivative [itex] \frac{\mathrm{d}^2}{\mathrm{d}x^2} e^{-ax} \cdot u(ax) [/itex]

Now you make the variable transformation [itex] w=ax [/itex]

How to express

[itex] \frac{\mathrm{d}^2}{\mathrm{d}w^2} [/itex]

Thanks

Greetings

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Variable transformation in a derivative

**Physics Forums | Science Articles, Homework Help, Discussion**