- #1
Zacarias Nason
- 68
- 4
Hello, folks. I'm trying to figure out how to take the partial derivative of something with a complex exponential, like
[tex] \frac{\partial}{\partial x} e^{i(\alpha x + \beta t)} [/tex]
But I'm not really sure how to do so. I get that since I'm taking the partial w.r.t. x, I can treat t as a constant term and thus pretend it's something like
[tex] \frac{\partial}{\partial x} e^{i(\alpha x +\beta)} [/tex]
But then my confusion comes from me not being able to separate the exponent into some suitable form like
[tex] e^{\alpha + \beta i} [/tex]
I guess I could separate it into two separate ones, like
[tex] e^{i\alpha x}e^{i\beta} [/tex]
How should I deal with this, any pushes in the right direction?
[tex] \frac{\partial}{\partial x} e^{i(\alpha x + \beta t)} [/tex]
But I'm not really sure how to do so. I get that since I'm taking the partial w.r.t. x, I can treat t as a constant term and thus pretend it's something like
[tex] \frac{\partial}{\partial x} e^{i(\alpha x +\beta)} [/tex]
But then my confusion comes from me not being able to separate the exponent into some suitable form like
[tex] e^{\alpha + \beta i} [/tex]
I guess I could separate it into two separate ones, like
[tex] e^{i\alpha x}e^{i\beta} [/tex]
How should I deal with this, any pushes in the right direction?