Function: factor (expr)
    Function: factor (expr,p)

    • Factors the expression expr

    Example:
      (%i ) factor(x ^2-1);
      (%o) (x-1)*(x+1)

      (%i ) factor(2*x ^2-5*x+2);
      (%o) (x-2)*(2*x-1)


    EXAMPLE: