:Disp "cranwell@yahoo.com" :Disp "A = angle of shadow" :Disp "B = angle of pyramid" :Disp "L = length between" ::Input "Aô=?",A :Input "Bô=?",B :Input "LENGTH=?",L :(L tan A tan B)/(tan B-tan A)üD :Disp "HEIGHT=" :Disp D