No overload for method 'ClampMagnitude' takes '3' arguments

This is the code and it says "Assets/JoyStick.cs(94,57): error CS1501: No overload for method 'ClampMagnitude' takes '3' arguments". --Thank you in advance--

 using UnityEngine;
 using System.Collections;
 
 public class Joystick : TouchLogic 
 {
     public enum JoystickType {Movement, LookRotation, SkyColor};
     public JoystickType joystickType;
     public Transform player = null;
     public float playerSpeed = 2f, maxJoyDelta = 0.05f, rotateSpeed = 100.0f;
     private Vector3 oJoyPos, joyDelta;
     private Transform joyTrans = null;
     public CharacterController troller;
     private float pitch = 0.0f,
     yaw = 0.0f;
     //[NEW]//cache initial rotation of player so pitch and yaw don't reset to 0 before rotating
     private Vector3 oRotation;
     void Start () 
     {
         joyTrans = this.transform;
         oJoyPos = joyTrans.position;
         //NEW//cache original rotation of player so pitch and yaw don't reset to 0 before rotating
         oRotation = player.eulerAngles;
         pitch = oRotation.x;
         yaw = oRotation.y;
     }
     
     void OnTouchBegan()
     {
         //Used so the joystick only pays attention to the touch that began on the joystick
         touch2Watch = TouchLogic.currTouch;
     }
     
     void OnTouchMovedAnywhere()
     {
         if(TouchLogic.currTouch == touch2Watch)
         {
             //move the joystick
             joyTrans.position = MoveJoyStick();
             ApplyDeltaJoy();
         }
     }
     
     void OnTouchStayedAnywhere()
     {
         if(TouchLogic.currTouch == touch2Watch)
         {
             ApplyDeltaJoy();
         }
     }
     
     void OnTouchEndedAnywhere()
     {
         //the || condition is a failsafe so joystick never gets stuck with no fingers on screen
         if(TouchLogic.currTouch == touch2Watch || Input.touches.Length <= 0)
         {
             //move the joystick back to its orig position
             joyTrans.position = oJoyPos;
             touch2Watch = 64;
         }
     }
     
     void ApplyDeltaJoy()
     {
         switch(joystickType)
         {
         case JoystickType.Movement:
             troller.Move ((player.forward * joyDelta.z + player.right * joyDelta.x) * playerSpeed * Time.deltaTime);
             break;
         case JoystickType.LookRotation:
             pitch -= Input.GetTouch(touch2Watch).deltaPosition.y * rotateSpeed * Time.deltaTime;
             yaw += Input.GetTouch(touch2Watch).deltaPosition.x * rotateSpeed * Time.deltaTime;
             
             //limit so we dont do backflips
             pitch = Mathf.Clamp(pitch, -80, 80);
             
             //do the rotations of our camera 
             player.eulerAngles += new Vector3 ( pitch, yaw, 0.0f);
             break;
         case JoystickType.SkyColor:
             Camera.mainCamera.backgroundColor = new Color(joyDelta.x, joyDelta.z, joyDelta.x*joyDelta.z);
             break;
             
         }
     }
     
     Vector3 MoveJoyStick()
     {
         //convert the touch position to a % of the screen to move our joystick
         float x = Input.GetTouch (touch2Watch).position.x / Screen.width,
         y = Input.GetTouch (touch2Watch).position.y / Screen.height;
         //combine the floats into a single Vector3 and limit the delta distance
         
         //If you want a rectangularly limited joystick (used in video), use this
         Vector3 position = new Vector3 (Vector2.ClampMagnitude(x, oJoyPos.x - maxJoyDelta, oJoyPos.x + maxJoyDelta),Vector2.ClampMagnitude(y, oJoyPos.y - maxJoyDelta, oJoyPos.y + maxJoyDelta), 0);//use Vector3.ClampMagnitude instead if you want a circular clamp instead of a square
         
         //If you want a circularly limited joystick, use this (uncomment it)
         //Vector3 position = Vector3.ClampMagnitude(new Vector3 (x-oJoyPos.x, y-oJoyPos.y, 0), maxJoyDelta) + oJoyPos;
         
         
         //joyDelta used for moving the player
         joyDelta = new Vector3(position.x - oJoyPos.x, 0, position.y - oJoyPos.y).normalized;
         //position used for moving the joystick
         return position;
     }
     
     void LateUpdate()
     {
         if(!troller.isGrounded)
             troller.Move(Vector3.down * 2);
     }
 }