Question

跪求高手，帮我修改一下，下面这段MATLAB的程序，改程序是应用MATLAB绘制一个分段函数的图形，急用，谢谢

程序如下：a=input('请输入最初细胞个数')
b=input('请输入观测时间')
n=0:0.01:2*b;
if n<=2*b/5;
y=a*2.^n;
elseif n>2*b/5&n<=6*b/5;
y=a*2.^20;
elseif n>6*b/5&n<=(a*2^(0.4*b)+1.008*b)/0.84;
y=-0.84*n+a*2^(0.4*b)+1.008*b;
else n>(a*2^(0.4*b)+1.008*b)/0.84;
y=0;
end
f=ones(size(n))
g=ones(size(y))
plot(f,g)

Answer 1

clear
a=input('Number of cells:')
b=input('Observation Time:')
m=0:0.01:2*b;
for i=1:size(m,2)
n=m(i);
if n<=2*b/5;
y(i)=a*2.^n;
elseif n>2*b/5&&n<=6*b/5;
y(i)=a*2.^20;
elseif n>6*b/5&&n<=(a*2^(0.4*b)+1.008*b)/0.84;
y(i)=-0.84*n+a*2^(0.4*b)+1.008*b;
else
y(i)=0;
end
end
plot(m,y)