1、使用apt-get install命令安装Octave：hxb@littleStar:~$ sudo apt-get install octave[sudo] hxb 的密码： 正在读取软件包列表... 完成正在分析软件包的依赖关系树 正在读取状态信息... 完成 下列软件包是自动安装的并且现在不需要了： linux-modules-4.15.0-20-generic使用'sudo apt autoremove'来卸载它(它们)。...
2、在命令行运行如下octave命令启动octave:hxb@littleStar:~$ octave该命令会打开Octave图形化界面，按照操作提示就可以打开软件界面
3、在命令行可以直接运行Octave语言指令：>> A[1,2,3;4,5,6;7,8,9]parse error: syntax error>>> A[1,2,3;4,5,6;7,8,9] ^>> A =[1,2,3;4,5,6;7,8,9]A = 1 2 3 4 5 6 7 8 9>> B = AB = 1 2 3 4 5 6 7 8 9
4、使用Octave矩阵和向量的运算>> A =[1,2,3;4,5,6;7,8,9]A = 1 2 3 4 5 6 7 8 9>> B =[2,3,4]B = 2 3 4>> C = A*Berror: operator *: nonconformant arguments (op1 is 3x3, op2 is 1x3)>> B=[2;3;4]B = 2 3 4>> C=A*BC = 20 47 74
5、使用Octave进行绘制数学图形sin和cos图形1.定义x值>> x = [0:0.01:0.80]x =Columns 1 through 13: 0.00000 0.01000 0.02000 0.03000 0.04000 0.05000 0.06000 0.07000 0.08000 0.09000 0.10000 0.11000 0.12000Columns 14 through 26: 0.13000 0.14000 0.15000 0.16000 0.17000 0.18000 0.19000 0.20000 0.21000 0.22000 0.23000 0.24000 0.25000Columns 27 through 39: 0.26000 0.27000 0.28000 0.29000 0.30000 0.31000 0.32000 0.33000 0.34000 0.35000 0.36000 0.37000 0.38000......2. 定义Y函数：>> y1 =sin(2*pi*4*x)y1 =Columns 1 through 13: 0.00000 0.24869 0.48175 0.68455 0.84433 0.95106 0.99803 0.98229 0.90483 0.77051 0.58779 0.36812 0.12533Columns 14 through 26: -0.12533 -0.36812 -0.58779 -0.77051 -0.90483 -0.98229 -0.99803 -0.95106 -0.84433 -0.68455 -0.48175 -0.24869 -0.00000Columns 27 through 39: 0.24869 0.48175 0.68455 0.84433 0.95106 0.99803 0.98229 0.90483 0.77051 0.58779 0.36812 0.12533 -0.12533Columns 40 through 52: -0.36812 -0.58779 -0.77051 -0.90483 -0.98229 -0.99803 -0.95106 -0.84433 -0.68455 -0.48175 -0.24869 -0.00000 0.24869Columns 53 through 65: 0.48175 0.68455 0.84433 0.95106 0.99803 0.98229 0.90483 0.77051 0.58779 0.36812 0.12533 -0.12533 -0.36812Columns 66 through 78: -0.58779 -0.77051 -0.90483 -0.98229 -0.99803 -0.95106 -0.84433 -0.68455 -0.48175 -0.24869 -0.00000 0.24869 0.48175Columns 79 through 81: 0.68455 0.84433 0.951061: 0.78000 0.79000 0.800003. 绘制sin图形>> plot(x,y1)>>
