1&&0 %AND
1 ||0 % OR
octave:6> PS1('>> ');
>>
octave:1> 5+6
ans = 11
octave:2> 1==2
ans = 0
octave:3> 1==2 %false %XXX %为注释
ans = 0
octave:4> 1~=2 %表示1不等于2
ans = 1
octave:5> xor(1,0) %异或
ans = 1
octave:6> PS1('>> '); %令提示符更精简
>> a =3
a = 3
>> a=3;%抑制打印输出
>> a =3
a = 3
>> a=3;
>> a
a = 3
>> b ='hids';
>> b
b = hids
>> c = (3>=1);
>> c
c = 1
>> a =pi;
>> a
a = 3.1416
>> disp(a);
3.1416
>> disp(sprintf('2 decimals: %0.2f', a))
2 decimals: 3.14
>> disp('0.6f',a)
error: Invalid call to disp. Correct usage is:
-- disp (X)
-- STR = disp (X)
Additional help for built-in functions and operators is
available in the online version of the manual. Use the command
'doc <topic>' to search the manual index.
Help and information about Octave is also available on the WWW
at https://www.octave.org and via the [email protected]
mailing list.
>> disp(sprintf('%0.6f',a))
3.141593
>> format long
>> a
a = 3.141592653589793
>> format short
>> a
a = 3.1416
>>>> A = [1 2; 3 4; 5 6]
A =
1 2
3 4
5 6
>> A = [1 2;
> 3 4;
> 4 5]
A =
1 2
3 4
4 5
>> V =[1 2 3]
V =
1 2 3
>> V =[1;2;3]
V =
1
2
3
>> V = 1:0.1:2
V =
1.0000 1.1000 1.2000 1.3000 1.4000 1.5000 1.6000 1.7000 1.8000 1.9000 2.0000
>> v = 1:6
v =
1 2 3 4 5 6
>> ones(2,3)
ans =
1 1 1
1 1 1
>> C = 2*ones(2,3)
C =
2 2 2
2 2 2
>> C = [ 2 2 2;2 2 2]
C =
2 2 2
2 2 2
>> w = zeros(1,3)
w =
0 0 0
>> w = ones(1,3)
w =
1 1 1
>> w = rand(1,3)
w =
0.42258 0.36123 0.84682
>> rand(3,3)
ans =
0.6879706 0.0030582 0.5453437
0.0901260 0.8243611 0.3456819
0.8819444 0.2436181 0.0290983
>>