X 1x1 8 double

y 1x1 8 double

z 1x1 8 double

>> clear x

>> whos

Name Size Bytes Class Attributes

t 1x1 8 double

y 1x1 8 double

z 1x1 8 double

>> clear y z

>> whos

Name Size Bytes Class Attributes

t 1x1 8 double

>> B=[1 3 -1]

B =

1 3 -1

>> B=[1,3,-1]

B =

1 3 -1

>> C=[-1;2.1]

C =

-1.0000

2.1000

>> A=[1 2 3 4;01 3 2]

??? Error using ==> vertcat

CAT arguments dimensions are not consistent.

>> A=[1 2 3 4;0 1 3 2]

A =

1 2 3 4

0 1 3 2

>> N=3

N =

3

>> m=[3]

m =

3

>> whos A B C n m

Name Size Bytes Class Attributes

A 2x4 64 double

B 1x3 24 double

C 2x1 16 double

m 1x1 8 double

>> v=1:2:7

v =

1 3 5 7

>> S=[-1+2*3 sqrt(2) abs(-3)]

S =

5.0000 1.4142 3.0000

>> R=[1 2 3 4;5 6 7 8; 9 10 11 12 13]

??? Error using ==> vertcat

CAT arguments dimensions are not consistent.

>>

>> R=[1 2 3 4;5 6 7 8;9 10 11 12 13]

??? Error using ==> vertcat

CAT arguments dimensions are not consistent.

>> R=[1 2 3 4;5 6 7 8;9 8 7 6 5]

??? Error using ==> vertcat

CAT arguments dimensions are not consistent.

>> R=[1 2 3 4;5 6 7 8;9 8 7 6]

R =

1 2 3 4

5 6 7 8

9 8 7 6

>> R(2,3)=-R(2,3)

R =

1 2 3 4

5 6 -7 8

9 8 7 6

>> R(1,3)=R(1,3)-4

R =

1 2 -1 4

5 6 -7 8

9 8 7 6

>> R(:,2)=2*R(:,2)

R =

1 4 -1 4

5 12 -7 8

9 16 7 6

>> R(:,1)=2*R(:1)

??? R(:,1)=2*R(:1)

|

Error: Unexpected MATLAB expression.

>> R(:,1)=2*R(:,1)

R =

2 4 -1 4

10 12 -7 8

18 16 7 6

>> R(:,1)=1,5*R(:,1)

R =

1 4 -1 4

1 12 -7 8

1 16 7 6

ans =

5

5

5

>> WHOS

??? Undefined function or variable 'WHOS'.

>> whos

Name Size Bytes Class Attributes

A 2x4 64 double

B 1x3 24 double

C 2x1 16 double

N 1x1 8 double

R 3x4 96 double

S 1x3 24 double

ans 3x1 24 double

m 1x1 8 double

t 1x1 8 double