Homework Statement
Sketch in 3D, the following waves. (both E fields are in x direction
E_1 = 3*exp(-j*8*Pi*z)
E_2 = 4j*exp(-j*8*Pi*z)
(where j=sqrt(-1)The Attempt at a Solution
I know how to sketch E_1, but my question is how to treat the imaginary amplitude, 4j in E_2.
here is my stab at...
ah! thanks - i can't believe I didn't see that - it's only one step! I often have problems seeing the stripped down identities and applying them to problems which have other factors (eg 9 and 4t etc).
Thanks for the hint
Simplifying an arc length problem
I have L= Int(-2..2) sqrt(16*cosh(4*t)^2+9*sinh(4*t)^2+9)
and can use Maple to simplify this to sqrt(25*cosh(4*t)^2)
but I just can't see how that is done. (or how to get maple to show me the steps!)
Can anyone help by showing the steps, including any...