clc
time:120
//1.˫бܱʾעͣ򲻻ִ˫бܺ,ִʱ˫бԼ֮
stop:1000
//2.Ҫִ˺ɫͷָе(Ҫ)û˵ʾеÿִʱǰسִеĽ
stop:1500
//ʾıʽ
stop:1000
x = 1*2/(3-6*sin(7)^2)+6.5//سõ½

stop:1000
//õx,ֱʹ,
stop:1000
y = sin(x+5)*(6.5-x)^2//سõ½

stop:1000
//3.ھ󲿷ֺĵö漰ĲʾĻʹ
stop:1000
//3.1 
stop:1500
//ÿһԪԶŻ߿ոָ
//еԪ
//ӣһ2*3a
stop:500
a = [1,2.3 ,5
6  7, 8]//سõ½

stop:1500
//3.2 ֱʹóʽԾÿԪؽбʽ
b = sin(a) + a^2//سõ½

stop:1500
//3.3 תã'űʾתò
at = a'//سõ½

stop:1500
//3.4 ãûʾĺ÷ʽƣʹÿɲοʹ˵
c = mul(a,at)//˷c = a  atسõ½

stop:1500
det(c)//cʽڲֵ£ĬΪansԻسɵõansֵ

stop:1500
//3.5 ҪʹðѡҼֱ뺯ƣȻس
stop:1500
//: 鿴Surfʹ˵
stop:1000
Surf//ֱӻس
show:

stop:3500
close:
//3.6 ʾһͼ
x = 1:100;//ֺţʾִб̨ӡʾxִֵк󽫴һ1100ݣx1*100ľ
y = sin(x/16)*10;//ͨxy
plot(x,y)//ִлͼسɿ
show:
stop:3500
close:

//ʹʾ,ӭʹ