symbolic expressionthe solve function solves an

Question

Symbolic Expression

The solve function solves an equation and returns the solution(s) as symbolic expressions. The answer can be converted to numbers by using any numeric function, like double:

>> x = sym('x');

>> solve('2*x^2 + x = 6')

ans =

3/2

   -2

>> double(ans)

ans =

      1.5000

    -2.0000

When an expression is passed to the solve function instead of an equation, it will set the expression equivalent to 0 and solve the resulting equation. For illustration, this will solve

3x² + x = 0:

>> solve('3*x^2 + x')

ans =

       0

 

 -1/3