>> a = [1 : 1 : 10]
a = 
1 2 3 4 5 6 7 8 9 10

 

>> a = linspace(1, 10, 10)
a =
1 2 3 4 5 6 7 8 9 10

 

>> a = [1 : 1.5 : 7]
a =
1.0000 2.5000 4.0000 5.5000 7.0000

 

>> a = linspace(1, 7, 5)
a =
1.0000 2.5000 4.0000 5.5000 7.0000

 

>> a = linspace(1, 7, 4)
a =
1 3 5 7

 

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

 

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

 

>> a = [1, 2, 3, 4; 5, 6, 7, 8]
a =
1 2 3 4
5 6 7 8

 

>> a = [3 4 2 1 4; 1 2 1 3 5; 2 3 5 1 1]
a =
3 4 2 1 4
1 2 1 3 5
2 3 5 1 1
>> b = [3 4; 1 1; 4 2; 3 1; 1 4]
b =
3 4
1 1
4 2
3 1
1 4
>> c = a * b
c =
28 37
23 31
33 26

 

>> a = [2 3; 2 4; 1 1; 3 2]
a =
2 3
2 4
1 1
3 2
>> b = [3 2 4; 2 1 5]
b =
3 2 4
2 1 5
>> c = a * b
c =
12 7 23
14 8 28
5 3 9
13 8 22

 

>> a = [2 : 0.5 : 6] 
a =
2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000 5.5000 6.0000

>> b = [5 : 2 : 21]
b =
5 7 9 11 13 15 17 19 21

>> z = a + b
z =
7.0000 9.5000 12.0000 14.5000 17.0000 19.5000 22.0000 24.5000 27.0000

 

>> z = a + 100
z =
102.0000 102.5000 103.0000 103.5000 104.0000 104.5000 105.0000 105.5000 106.0000

>> t = a * b

Error using *

Inner matrix dimensions must agree.

 

>> t = a .* b

t =

10.0000 17.5000 27.0000 38.5000 52.0000 67.5000 85.0000 104.5000 126.0000

 

>> a = [1 : 0.25 : 3]
a =
1.0000 1.2500 1.5000 1.7500 2.0000 2.2500 2.5000 2.7500 3.0000

 

>> b = [1 : 0.5 : 5]
b =
1.0000 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000

 

>> v = a.^b
v =
1.0000 1.3975 2.2500 4.0513 8.0000 17.0859 39.0625 94.8412 243.0000

 

>> syms x

>> y = (x - 1)*(x - 2)*(x - 3)
y =
(x - 1)*(x - 2)*(x - 3)

>> z = collect(y)
z =
x^3 - 6*x^2 + 11*x – 6

>> t = factor(z)
t =
[ x - 3, x - 1, x - 2]

 

>> y = (x - 1) * (x^2 + x + 1) * (x - 2) * (x - 3)
y =
(x - 1)*(x - 2)*(x - 3)*(x^2 + x + 1)
>> z = collect(y)
z =
x^5 - 5*x^4 + 6*x^3 - x^2 + 5*x - 6

>> t = factor(z)
t =
[ x - 1, x - 2, x - 3, x^2 + x + 1]

 

 

 

 

> y = (-5:0.1:4).^3;

>> plot(y)

 

>> length(y)
ans =
    91

 

>> x = -5:0.1:4;
>> y = (x).^3;
>> plot(x,y)

 

 

>> xlabel('x');
>> ylabel('y');
>> title('Graficul functiei y = x^3');

>> grid;

 

 

>> x1 = 0:.1:10;
>> y1 = cos(x1);
>> x2 = 1.5*x1;
>> y2 = 2*cos(x2);
>> x3 = 2*x1;
>> y3 = 3*sin(x3);
>> plot(x1,y1,x2,y2,x3,y3

 

 

>> x = -2:.1:2;
>> plot(x,sin(x),'-r');
>> hold on
>> plot(x,sin(x.^2),'--b');
>> plot(x,cos(x.^2),':k');
>> hold off