差商

(math.) difference quotient / divided difference / finite difference

difference; discrepancy / (math.) difference (amount remaining after a subtraction) / (literary) a little; somewhat; slightly

different / wrong; mistaken / to fall short; to lack / not up to standard; inferior / Taiwan pr. [cha1]

to send (on an errand) / (archaic) person sent on such an errand / job; official post

used in 參差|参差[cen1 ci1]

Shang Dynasty (c. 1600-1046 BC) / surname Shang

commerce / merchant / dealer / to consult / 2nd note in pentatonic scale / quotient (as in 智商[zhi4 shang1], intelligence quotient)