運算式 24: "m" equals "y" Subscript, "k" 2 , Baseline times ceiling left parenthesis, StartFraction, "x" minus "s" floor left parenthesis, StartNestedFraction, "x" NestedOver "s" , EndNestedFraction , right parenthesis Over "s" , EndFraction minus 0.5 , right parenthesis plus ceiling left parenthesis, StartFraction, "x" minus StartNestedFraction, "s" NestedOver 2 , EndNestedFraction minus "s" floor left parenthesis, StartNestedFraction, "x" minus StartNestedFraction, "s" NestedOver 2 , EndNestedFraction NestedOver "s" , EndNestedFraction , right parenthesis Over "s" , EndFraction minus 0.5 , right parenthesis times "y" Subscript, "k" , Baselinem=yk2·ceilx−sfloorxss−0.5+ceilx−s2−sfloorx−s2ss−0.5·yk
