matlab表达式编写求值

clear all
clc
x=-3:0.1:3;
f=inline('(exp(0.3*a)-exp(0.2*a))/2*sin(a+0.3)','a')
m=length(x);z=zeros(1,m);
for i=1:m
z(i)=subs(f,'a',x(i));
end
z