code: func abs(slice []float64) []float64 {
  	var newSlice []float64
  	for _, value := range slice {
  		if value < 0.0 {
  			value = math.Abs(value)
  		}
  		newSlice = append(newSlice, value)
  	}
  	return newSlice
  }
docs: // Convert each value to the absolute value