matlab基本操纵

for循环+画图

for i=1:10
    x=linspace(0,10,101);
    plot(x,sin(x+i));
end

代码块

%% 
% for n = 1:2:10
%     a(n)=2^(2*n-1);
% end
% disp(a)
%% 

%% 
% tic
% for i = 1:2000
%     for j = 1:2000
%         a(i,j)=i+j;
%     end
% end
% toc
%% 

%% 
tic
A=zeros(2000,2000);
for i = 1:size(A,1)
    for j = 1:size(A,2)
        a(i,j)=i+j;
    end
end
toc
%%

函数定义

function x= freebody(x0,v0,t)
x=x0+v0.*t+1/2*9.8.*t.*t;