x=[1 -2 -1 3 0.5 1.7 3]

y=[1;-2;-1]

x(2)

a=5*x(2)+x(5)

length(x)

A=[1 -1; 3 4;0 2; -3 5]

B=[1 -1 3 4
0 2 -3 5
2 -1 5 8]

a=A(3,2)

4*B(1,2)+A(4,1)+10

size(A)

s=size(B)

A=[1 -1; 3 4; 0 2; -3 5];
C=A'

A=[2+3i,1-i, 4; -1-2i,-3,5i]

C=A'

x=[1 -2 -1 3 0.5 1.7 3];
size(x)

x(1,5)

v=[1 -2 -1];
u=v'

size(u)

u(2,1)

w=2:0.3:3

z=[30:34]

D=[1 -1 0; 3 2 4;0 -3 2];
D(:,2)

row=D(3,:)

block=B(1:2,1:3)

selection=x(2:2:6)

subject='philosophy of mathematics'

first_letter=subject(1)

first_letter+x(2)

cube(:,:,1)=[2 -3 0; 1 2 3; 0 0 1];
cube(:,:,2)=[1 0 0;A=[2 -3 0; 1 2 3; 0 0 1];
>> B=[1 0 0; 13 12 11; -1 -1 3];
>> C=[5 -5; 2 1]; D=[1 15; -3 4];
>> A+B
 13 12 11; -1 -1 3];
cube

size(cube)




