Octave Introduction
From Coder Merlin
Revision as of 10:49, 21 March 2022 by David-ben-yaakov (talk | contribs) (Created page with "== Torus == 1. Enter your "www" directory: {{ConsoleLine|john-williams@codermerlin:~$ |cd ~/www }} 2. Start '''octave''': {{ConsoleLine|john-williams@codermerlin:~$ |octave }} 3. Within '''octave''', type the following to create and plot a torus, saving the file as "torus.png" to your www directory. {{ConsoleLines |classes=rounded py-2 |prompt= | octave:1> u {{Equal}} linspace(0, 2*pi, 25); octave:2> v {{Equal}} u; octave:3> [U V] {{Equal}} meshgrid(u, v); octave:...")
Within these castle walls be forged Mavens of Computer Science ...
— Merlin, The Coder
Torus[edit]
1. Enter your "www" directory:
john-williams@codermerlin:~$ cd ~/www
2. Start octave:
john-williams@codermerlin:~$ octave
3. Within octave, type the following to create and plot a torus, saving the file as "torus.png" to your www directory.
octave:1> u = linspace(0, 2*pi, 25);
octave:2> v = u;
octave:3> [U V] = meshgrid(u, v);
octave:4> X = (5 + cos(U)).*cos(V);
octave:5> Y = (5 + cos(U)).*sin(V);
octave:6> Z = sin(U);
octave:7> surf(X, Y, Z);
octave:8> axis('equal');
octave:9> print -dpng torus.png
