写给老婆用的计算器，含代码 mmo1.Text := '不需要缴税' ; if spe1.Value < 2000 then exit else i:= spe1.Value - 2000; if i<=500 then m:= i * 0.05 else if i <= 2000 then m:= i * 0.1 - 25 else if i <= 5000 then m:= i * 0.15 - 125 else if i <= 20000 then m:=
There are at least two different algorithms that can compute XN for some positive integer N. Algorithm 1 is to use N – 1 multiplications. Algorithm 2 works in the following way: if N is even, XN = XN / 2 XN / 2; and if N is odd, XN = X(N – 1) / 2
BS ISO 80000-2:2009
量和单位 第2部分: 自然科学和技术中使用的数学标志与符号
Quantities and units Part 2: Mathematical signs and symbols to be used in the natural sciences and technology
