Symbolic Math using Octave and Matlab

For Octave 4.4.1

1. download the symbolic-win-py-bundle-2.7.1.zip file at our github releases page.
2. start Octave, change folder to where your downloads are.
3. type pkg install symbolic-win-py-bundle-2.7.1.zip
4. type pkg load symbolic
5. type syms x

https://github.com/cbm755/octsympy/wiki/Notes-on-Windows-installation

Get the list of functions from here:
https://octave.sourceforge.io/list_functions.php?sort=alphabetic

Octave has the vector package i.e. 1 dimensional matrix and its cross product.

However it does not have units and physical constants, unike Maxima.

Maxima 5.42.2 does not have a workable image load function. Its only load_xpm() is broken.

• cross  octave
• Compute the vector cross product of two 3-dimensional vectors X and Y.

• cross (sym)  symbolic

Symbolic cross product.

a = [sym('a1'); sym('a2'); sym('a3')];
b = [sym('b1'); sym('b2'); sym('b3')];
cross(a, b)

• solve (sym)  symbolic

  Symbolic solutions of equations, inequalities and systems.

  
  

  syms x
  solve(x == 2*x + 6, x)
    ⇒ ans = (sym) -6
  solve(x^2 + 6 == 5*x, x)

  vpasolve  symbolic

  Numerical solution of a symbolic equation. 

  dsolve (sym)  symbolic

  Solve ordinary differential equations (ODEs) symbolically.

  
  

  syms y(x)
  DE = diff(y, x) - 4*y == 0
    ⇒ DE = (sym)
                  d
        -4⋅y(x) + ──(y(x)) = 0
                  dx
  

  sol = dsolve (DE)
    ⇒ sol = (sym)
                   4⋅x
        y(x) = C₁⋅ℯ