The design & format of stairs of a building can be designed & architected by the graph of math functions. Each stair of a building will be designed & architected by the different graph of the different math functions.
Suppose,
1st stair will be,
y=Cos3x {Like the graph of the stated function}
2nd stair will be,
y=(3x-3)\3 {Like the graph of the stated function}
3rd stair will be,
y=|Sin3x| {Like the graph of the stated function}
Besides, each railing of each stair will be like the individual graph of the function of the individual stair.
