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jetzt
Sep23-10, 10:55 AM
Dear

I am trying to integrate the following equation

f=exp(m*x) dx

where x =[x1 , x2] is a vector of variable could you help me please to find the solution when I would like to integrate like this kind of equations.

help appreciated

Best Regards

CompuChip
Sep23-10, 11:19 AM
So you want to find
\int e^{m \vec x} \, \mathrm d\vec x
right?

Can you first explain what that notation means?
Usually \mathrm d\vec x = dx_1 \, \mathrm dx_2 but what is e^{m \vec x} in this case?

(If everything is properly defined, you'd expect something like m e^{m \vec x} of course)

jetzt
Sep24-10, 05:02 AM
the x=[x1 x2] is array of variables where x1 and x2 are complex and m is
a constant. so my question how could I integrate the function over an array dx and should I have one or two complex integral ,I think so two may be because we have two variable in the array

thanks for the help

HallsofIvy
Sep24-10, 10:49 AM
Yes, we understood that. CompuChip's question was "what does e^{m[x1, x2]} mean?" How are you defining e to a vector power? In order for the integral to make sense, e to a vector power, here, must be a vector. Can you give more context for the problem.

(And you would expect something like e^{m\vec{x}} divided by m, not multiplied by m.)

sachinism
Sep24-10, 11:09 AM
well i guess the question should be moved to the right forum