clear all
clc
x=0:1:250;
v=zeros(size(x));
for i=1:length(x)
if x(i)<=195
%a = abs((195^2-(x-195).^2)).^0.5
y(i)=abs((195^2-(x-195).^2)).^0.5-0.2.*x;
else(x(i)>=195)&(x(i)<=250)
y(i)=295-0.2.*x;
end
end
plot(x,y)
以上程序求函数的最大值与最小值。