Notes

Classroom License -- for classroom instructional use only.

>> a=4

a =

4

>>
>> a=4;
>> 55-44

ans =

11

>> 25-a

ans =

21

>> A=6,a=5;

A =

6

>> A=6,a=5;x=1;

A =

6

>> x=2+i*4

x =

2.0000 + 4.0000i

>> pi

ans =

3.1416

>> format long
>> pi

ans =

3.141592653589793

>> format short
>> pi

ans =

3.1416

>> a=[1 2 3 4]

a =

1 2 3 4

>> b=[1;2;3;4]

b =

1
2
3
4

>> a

a =

1 2 3 4

>> a'

ans =

1
2
3
4

>> A=[1 2 3; 4 5 6; 8 9 10]

A =

1 2 3
4 5 6
8 9 10

>> B=[1 2; 4 5; 6 9]

B =

1 2
4 5
6 9

>> A=[[1 4 7]' [2 5 7]' [3 6 9]']

A =

1 2 3
4 5 6
7 7 9

>> b

b =

1
2
3
4

>> b[3]
b[3]
↑
Error: Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check
for mismatched delimiters.

>> b(3)

ans =

3

>> A

A =

1 2 3
4 5 6
7 7 9

>> A(2,2)

ans =

5

>> A(3,3)

ans =

9

>> who

Your variables are:

A B a ans b x

>> E=zeros(2,3)

E =

0 0 0
0 0 0

>> u=ones(1,3)

u =

1 1 1

>> t=1:5

t =

1 2 3 4 5

>> t=1:0.5:5

t =

1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000

>> t=10:-1:5

t =

10 9 8 7 6 5

>> A

A =

1 2 3
4 5 6
7 7 9

>> A(1,:)

ans =

1 2 3

>> A(:,3)

ans =

3
6
9

>> t

t =

10 9 8 7 6 5

>> t(2:4)

ans =

9 8 7

>> linspace(1,6,10O)
linspace(1,6,10O)
↑
Error: Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or
other syntax error. To construct matrices, use brackets instead of parentheses.

Did you mean:
>> linspace(1,6,10)

ans =

1.0000 1.5556 2.1111 2.6667 3.2222 3.7778 4.3333 4.8889 5.4444 6.0000

>> linspace(1,6,3)

ans =

1.0000 3.5000 6.0000

>> logspace(-1,2,4)

ans =

0.1000 1.0000 10.0000 100.0000

>> f='Bahcesehir';
>> s='University';
>> t=' ';
>> x=[f t s]

x =

'Bahcesehir University'

>> f="Bahcesehir"

f =

"Bahcesehir"

>> x=[f t s]

x =

1×3 string array

"Bahcesehir" " " "University"

>> 2*pi

ans =

6.2832

>> y=pi/4

y =

0.7854

>> y=-4^2

y =

-16

>> y=(-4)^2

y =

16

>> x=2+i*4

x =

2.0000 + 4.0000i

>> 3*x

ans =

6.0000 +12.0000i

>> x^2

ans =

-12.0000 +16.0000i

>> A=[1 2 3 4; 5 6 7 8; 9 10 11 60]

A =

1 2 3 4
5 6 7 8
9 10 11 60

>> a*b

ans =

30

>> c=[1 2 3];
>> c*A

ans =

38 44 50 200

>> c.*A
Matrix dimensions must agree.

>> a.*A

ans =

1 4 9 16
5 12 21 32
9 20 33 240

>> A^2
Error using ^
Incorrect dimensions for raising a matrix to a power. Check that the matrix is square and the power is a
scalar. To perform elementwise matrix powers, use '.^'.

>> A.^2

ans =

1 4 9 16
25 36 49 64
81 100 121 3600

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

B =

1 2 3
4 5 6
7 8 9

>> B^2

ans =

30 36 42
66 81 96
102 126 150

>> B.^2

MATLAB has lost its connection to the license server.
MATLAB will make 9 more reconnection attempt(s) and then exit. Any unsaved changes will be lost.

>> B.^2

ans =

1 4 9
16 25 36
49 64 81

>>