Question

matlab 试题,很简直的,求高手帮忙,急,在线等

Answer 1

(1)
A=[3 2 3;4 2 6;7 8 1];
B=[1 1 1;2 2 2;3 3 3];
A*B
A.*B

ans =

16 16 16
26 26 26
26 26 26

ans =

3 2 3
8 4 12
21 24 3
(2)
y=sin(10*pi)*exp(-0.3+4^2)+log(23)/log(4)

y =

2.2618

(3)
y(1)=f3(0.34);
y(2)=f3(3);
y(3)=f3(6.87);
y(4)=f3(3)-f3(2)*f3(-4)^2;
y

function y=f(x)
y=x^3-3*x^2-x+3;

y =

1.0e+004 *

0.0002 0 0.0179 3.3075

Answer 2

1、A*B
A.*B