MIT6_094IAP10_lec02

Colbie

MIT6_094IAP10_lec02

• How long did it take to do required problems?
• Did anyone do optional problems?
• Was level of guidance appropriate?
3 [3 x4 P7 F+ @0 t* S( z9 _. M• Unanswered Questions?
• Some things that came up:
• Use of semicolon – never required if one command per line.
You can also put multiple commands on one line; in this case a semicolon is necessary to separate commands:
9 v. i9 X' i( _/ j5 R/ ~. h) u# R» x=1:10; y=(x-5).^2; plot(x,y);
% M, ?  H6 ^7 \; c  E• Assignment using indices – remember that you can index into matrices to either look up values or to assign value:
» x=rand(50,1); inds=find(x<0.1); y=x(inds);
2 }5 \2 _( D& g: U* X' hx(inds)=-x(inds); x(inds)=3;

1 W+ {: \' R, w% Z2 h

游客，如果您要查看本帖隐藏内容请回复

# z! B& i3 i1 N+ H

busahuang

看看什么好东东。