How to use double loop in an equation?

Hi,

I want to compute a function say Rp as of theta and frequency, like Rp(theta, f).

How can I write equation with double loop and secondly how can I plot it like as a function of theta and f ?

Answer 1

[Jan]

The readers cannot guess, why you assume, that loops are required. Maybe this is sufficient already:

theta = linspace(0, 180, 20);
f = linspace(1, 10, 20);
y = Rp(theta, f);
surf(theta, f, y)

function y = Rp(theta, f)
y = sin(theta).' .* cos(f / 5);
end

[Nisar Ahmed]

Thanks Jan