Equation syntax problem. Can someone help me type it in correctly?

I'm pretty new to matlab and i'm not positive how to type this equation in correctly,

function [E_theta] = example_pattern_function(theta_radians, phi_radians)

E_theta = sin(theta_radians).*sin(cos(theta_radians)*3.14159);

E_theta = E_theta / (3.14159*cos(theta_radians));

any suggestions?

[Image Analyst]

Why is p a function of phi? I don't see phi, I see only theta.

Answer 1

[Walter Roberson]

(sin(theta) .* sin(pi * cos(theta)) ./ (pi * cos(theta))).^2

Answer 2

[matt]

thanks a ton!