Turn to rotation vs turn (left/right)

What’s the difference between these two blocks? the online help didn’t help.

“Turn right for 90 degrees” is relative – it will turn the robot 90 degrees right, starting from whatever direction it’s facing when the program reaches that block.

“Turn to rotation 90 degrees” is absolute – it will turn the robot in whichever direction and amount is necessary to end up facing 90 degrees right of the direction it was facing at the start of the program.

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Thanks.
Then what’s the difference between “turn to rotation” and “turn to heading”?

When the robot rotates through 360 degrees, the heading resets to 0 but the rotation does not.

So starting from the beginning of the program, “turn to heading 450 degrees” would cause the robot to turn 90 degrees right (360 + 90 = 450), but “turn to rotation 450 degrees” would cause the robot to turn 450 degrees right.

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