octave安装和基本使用

Tue, 10 Apr 2018 00:00:00 +0000

[TOC]

Octabe install

On Ubuntu, you can use:

sudo apt-get update && sudo apt-get install octave

On Fedora, you can use:

sudo yum install octave-forge

Octave 使用

官方文档

GNU Octave, version 4.2.2
Copyright (C) 2018 John W. Eaton and others.
Octave was configured for "x86_64-pc-linux-gnu".
...
For more information, visit http://www.octave.org/get-involved.html
>> 1 ==2
ans = 0
>> 1~=2
ans = 1
# 9x9 随机 0~1
>> rand(9,9)
ans =
0.3560386 0.4607871 0.8059847 0.2042094 0.2411058 0.9311803 0.8023873 0.8208079 0.9631931
0.4604231 0.0222901 0.6693275 0.5887816 0.0076518 0.1670580 0.6335819 0.1711659 0.1405882
0.0519485 0.3400714 0.2909762 0.3687556 0.7300303 0.3436051 0.1679526 0.2550348 0.0342722
0.9379501 0.7760394 0.0859048 0.3292712 0.2385854 0.8567406 0.2433711 0.8027390 0.4103872
0.8297066 0.5138018 0.3540072 0.7688630 0.7550758 0.0676738 0.3528168 0.5365513 0.8800598
0.3350162 0.8376844 0.7863446 0.6448189 0.1355422 0.0235755 0.2975952 0.2879286 0.8854084
0.2484960 0.2086548 0.4821656 0.5838678 0.2676164 0.8016253 0.5552146 0.2787187 0.7647289
0.7559019 0.2639478 0.4199944 0.5312557 0.5202589 0.7852354 0.5681352 0.1088001 0.6572705
0.9477478 0.4998028 0.4179308 0.0513819 0.8775790 0.5860457 0.3993368 0.3765168 0.2140254
>> ones(9,9)
ans =
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
>> W = zeros(9,9);
>> W
W =
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
>> rand(1, 2)
ans =
0.76409 0.77792
>> sqrt(9)
ans = 3


>> A = rand(1, 100000);
>> hist(A, 20)

MATLAB on My Blog

octave安装和基本使用

Octabe install

Octave 使用