w=(0.984^(1.5)-371^(1/7))/(2.65^1.6)

w =

-0.28436

u=ln((1.23^(1/3))+(0.78^(1/4))+2)
??? Undefined function or variable 'ln'.

u=log((1.23^(1/3))+(0.78^(1/4))+2)

u =

1.3891

t=cos(4*pi/6)+sin(360*pi/51)+atan(0.5)^3

t =

-0.58408

t=cos(4*pi/6)+sin(51*pi/180)+atan(0.5)^3

t =

0.37682

clc
clear
A=[2 3;3 4]

A =

2 3
3 4

x=[1 3 5]

x =

1 3 5

y=[1;3;5]

y =

1
3
5

clear
A=[3 -1;5 0]

A =

3 -1
5 0

B=[2 58]

B =

2 58

C=[7;6]

C =

7
6

D=[B;C A]
??? Error using ==> vertcat
All rows in the bracketed expression must have the same
number of columns.

D=[B;C A]
??? Error using ==> vertcat
All rows in the bracketed expression must have the same
number of columns.

B=[2 5 8]

B =

2 5 8

D=[B;C A]

D =

2 5 8
7 3 -1
6 5 0

x=[1:1:10]

x =

1 2 3 4 5 6 7 8 9 10

y=1:10

y =

1 2 3 4 5 6 7 8 9 10

z=8:-1:1

z =

8 7 6 5 4 3 2 1

y=-1:0.2:1

y =

Columns 1 through 6

-1 -0.8 -0.6 -0.4 -0.2 0

Columns 7 through 11

0.2 0.4 0.6 0.8 1

A=[2:2:12;1 2 3 3 2 1]

A =

2 4 6 8 10 12
1 2 3 3 2 1

A=[2:2:12;1:3 1:-1:1]
??? Error using ==> vertcat
All rows in the bracketed expression must have the same
number of columns.

A=[2:2:12;1:3 3:-1:1]

A =

2 4 6 8 10 12
1 2 3 3 2 1

cleaar
??? Undefined function or variable 'cleaar'.

clear
C=[2 0 1 4 7;3 9 8 5 6;1 5 0 4 3]

C =

2 0 1 4 7
3 9 8 5 6
1 5 0 4 3

z=C(
??? z=C(
|
Error: Expected a variable, function, or constant, found "end of line".

z=C(1,2)

z =

0

C(2,3)=7

C =

2 0 1 4 7
3 9 7 5 6
1 5 0 4 3

x=[2 5 7 9 0]

x =

2 5 7 9 0

x(5)

ans =

0

C(5)

ans =

9

C(2,:)

ans =

3 9 7 5 6

f=C(:,3)

f =

1
7
0

C(:,5)=[1;1;1]

C =

2 0 1 4 1
3 9 7 5 1
1 5 0 4 1

g=C(2,2:4)

g =

9 7 5

h=C(2,[2 4])

h =

9 5

z=zeros(4)

z =

0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0

z=zeros(4,2)

z =

0 0
0 0
0 0
0 0

u=ones(2,3)

u =

1 1 1
1 1 1

t=eye(4)

t =

1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1

rand(5)

ans =

0.95013 0.7621 0.61543 0.40571 0.057891
0.23114 0.45647 0.79194 0.93547 0.35287
0.60684 0.018504 0.92181 0.9169 0.81317
0.48598 0.82141 0.73821 0.41027 0.0098613
0.8913 0.4447 0.17627 0.89365 0.13889

D=rand(3)

D =

0.20277 0.27219 0.74679
0.19872 0.19881 0.4451
0.60379 0.015274 0.93181

D=rand(3,5)

D =

0.46599 0.52515 0.83812 0.37948 0.70947
0.41865 0.20265 0.01964 0.8318 0.42889
0.84622 0.67214 0.68128 0.50281 0.30462

D'

ans =

0.46599 0.41865 0.84622
0.52515 0.20265 0.67214
0.83812 0.01964 0.68128
0.37948 0.8318 0.50281
0.70947 0.42889 0.30462

inv(t)

ans =

1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1

size(D)

ans =

3 5

[n m]=size
??? Error using ==> size
Not enough input arguments.

[n m]=size(D)

n =

3


m =

5

n=size(D,1)

n =

3

m=size(D,2)

m =

5

D=[1 3 6;2 5 8]

D =

1 3 6
2 5 8

max(D)

ans =

2 5 8

max(max(D))

ans =

8

r=sum(D)

r =

3 8 14

prod(D)

ans =

2 15 48

mean(D)

ans =

1.5 4 7

diary off