writing a traveling electromagnetic wave
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How can I write the highlited below in matlab with ploting :
Exercise 1-3: The electric field of a traveling
electromagnetic wave is given by
E(z, t) = 10 cos(π × 10^7t + πz/15 + π/6) (V/m).
Determine (a) the direction of wave propagation, (b) the
wave frequency f , (c) its wavelength λ, and (d) its phase
velocity up.
Answer: (a)−z direction, (b) f = 5 MHz, (c) λ = 30 m,
(d) up = 1.5 × 108 m/s.
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darova
le 16 Fév 2021
I think your plot should be a surface since you have two dependent variables z and t
Here is an example
t = linspace(0,200,30);
x = linspace(0,200,30);
[T,X] = meshgrid(t,x); % create matrices
E = % your formula
surf(T,X,E)
Remember about dot before operator signs while using matrices
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