如何用mathmatica完成如下图分段函数,
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/07/08 17:21:42
如何用mathmatica完成如下图分段函数,
![](http://img.wesiedu.com/upload/3/a1/3a17e0603d071bc895fd7f957b380ee5.jpg)
![](http://img.wesiedu.com/upload/3/a1/3a17e0603d071bc895fd7f957b380ee5.jpg)
f[x_] := 0 /; x <= 0
f[x_] := 10 + 2 x /; (x > 0 && x <= 10)
f[x_] := 30 /; 10 < x <= 20
f[x_] := 30 - (x - 20)/2 /; (x <= 40 && x > 20)
f[x_] := 20 /; (x > 40 && x <= 50)
f[x_] := 20 - 2 (x - 50) /; (x > 50 && x <= 60)
f[x_] := 0 /; x > 60
Plot[f[x],{x,0,60}]
![](http://img.wesiedu.com/upload/8/21/821c1acf044d67a80147b0d095cd0437.jpg)
f[x_] := 10 + 2 x /; (x > 0 && x <= 10)
f[x_] := 30 /; 10 < x <= 20
f[x_] := 30 - (x - 20)/2 /; (x <= 40 && x > 20)
f[x_] := 20 /; (x > 40 && x <= 50)
f[x_] := 20 - 2 (x - 50) /; (x > 50 && x <= 60)
f[x_] := 0 /; x > 60
Plot[f[x],{x,0,60}]
![](http://img.wesiedu.com/upload/8/21/821c1acf044d67a80147b0d095cd0437.jpg)