Li-Fan Chen => YSITD: r(t_1) = r(t_2) and t_1 = t_2 + (2n+1)*pi #5e7ee4932efe4b03696b01d8

Li-Fan Chen says to YSITD

r(t_1) = r(t_2) and t_1 = t_2 + (2n+1)*pi

at Sat, Mar 28, 2020 1:45 PM