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octave

Using vpasolve to find multiple solutions

I'm using GNU octave and the symbolic package there to solve numerical solutions. This is one of my sample session:

octave> pkg load symbolic
octave> syms x
octave> vpasolve(x^2 == 1)
ans = (sym) 1.0000000000000000000000000000000

What I'm expecting is a solution containing the answer both 1 and -1. How can I achieve that ?

Solution

  • Seems I have been using a wrong function. Using solve function fixes it for me:

    octave > pkg load symbolic
octave > syms x
octave > solve(x^2 == 1, x)

    : octave> ans = (sym 2×1 matrix)
: 
:   ⎡-1⎤
:   ⎢  ⎥
:   ⎣1 ⎦