I've gotten one step closer but now with error:
t = 0:0.01:pi % Theta from 0 to pi
%
tm = sqrt(44.*cos(t).^2 + 44*cos(t).*sin(t)+29.*sin(t).^2) % traction magnitude eqn derived on paper
plot(t, tm(t))
Array indices must be positive integers or logical values.
Error in HW2_1a_SMI_Michael_Meyne (line 16)
plot(t, tm(t))