?? diyiti.m
字號:
x=-5:(0.01):5;
y=1./(1+3*x.^2);
hold on
plot(x,y,'b-');
xx=(-5):(0.5):5;
yy=1./(1+3*xx.^2);
x=(-5):(0.01):5;
n=length(x);
y=zeros(n,1);
for ii=1:21
y1=ones(n,1);
for jj=1:21
if ii ~= jj
y1=y1.*(x-xx(jj))'/(xx(ii)-xx(jj));
end
end
y=y+y1*yy(ii);
end
hold on
plot(x,y,'g-');
xx=(-5):(0.5):5;
yy=1./(1+3*xx.^2);
hold on
plot(xx,yy,'r*');
x=-5:(0.5):5;
y=1./(1+3*x.^2);
xx=-5:(0.01):5;
yy=spline(x,y,xx);
hold on
plot(xx,yy,'k');
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -