Servos motion not smooth Answered

Hi,
im trying to program my servo to do a simple sweep (smooth motion).
but instead it jerks a small degree everytime.


the code i've used :

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

void setup()
{
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop()
{

  myservo.write(10);                  // sets the servo position according to the scaled value
  delay(1000);                           // waits for the servo to get there
  myservo.write(150);                  // sets the servo position according to the scaled value
  delay(1000);
}