84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
1 3
2 63 6
4 6
5 96 9
7 9
8 129 12x y
根据以上规律,请写出公式来。
光阴似箭催人老,日月如移越少年。
y = floor((x + 4) / 3) * 3
floor向下取整。
但是,通过多项式插值,可以产生无数的多项式,满足1-9的条件。
$ss=1;$sf=4;
$xs=3;$xf=4;
$zs=1;$sf+$sf*(int)(($zs-$ss-1)/$xs)+$xf;
y = floor((x + 4) / 3) * 3
floor向下取整。
但是,通过多项式插值,可以产生无数的多项式,满足1-9的条件。
$ss=1;
$sf=4;
$xs=3;
$xf=4;
$zs=1;
$sf+$sf*(int)(($zs-$ss-1)/$xs)+$xf;