YSITD_TG_Bot2 says to #ysitd <rextw>: https://www.google.com.tw/search?ei=ikoMWuzmBsHO0ASIpKr4Bw&q=sin+x%2C+sin+%28x%2B0.5pi%29&oq=sin+x%2C+sin+%28x%2B0.5pi%29&gs_l=psy-ab.3...3250.6718.0.7345.16.16.0.0.0.0.134.1194.14j2.16.0....0...1.1.64.psy-ab..0.12.897...0j0i8i30k1j0i5i10i30k1j0i30k1j0i10i30k1j0i203k1.0.s4XY783Ungk