g_03 <- function ( x )

#*****************************************************************************80
#
## g_03() evaluates x^4+2x^2+x+3.
#
#  Licensing:
#
#    This code is distributed under the MIT license.
#
#  Modified:
#
#    12 June 2021
#
#  Author:
#
#    John Burkardt
#
#  Input:
#
#    real X, the point at which F is to be evaluated.
#
#  Output:
#
#    real VALUE, the value of the function at X.
#
{
  value <- ( ( x * x + 2.0 ) * x + 1.0 ) * x + 3.0

  return ( value )
}