YSITD_Chat_Bot => #ysitd: <mingtsay>: (mingtsay: S - S...) S ( 1 - r ) = a0 ( 1 - r ^ ( n + 1 ) ) #5db3da7e7121c5b6f4f114f9

YSITD_Chat_Bot says to #ysitd

<mingtsay>: (mingtsay: S - S...) S ( 1 - r ) = a0 ( 1 - r ^ ( n + 1 ) )

at Sat, Oct 26, 2019 1:32 PM