% Bloch Equation Simulation, Excercise B-1a % ----------------------------------------- % df = 0; % Hz off-resonance. T1 = 600; % ms. T2 = 100; % ms. TE = 1; % ms. flip = pi/3; % radians. M = [0;0;1]; Rflip = yrot(flip); [Ate,Bte] = freeprecess(TE,T1,T2,df); M = Rflip*M; % Magnetization after tip. M = Ate*M+Bte % Magnetization at TE.