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Instructions.
When the > button is highlighted, an animation is prepared to run. Use the Step button to step through the animation one step at a time.
When no animation is in progress, you can use the data controls to start a new animation.
You can click and drag on the animation area to pan around. Use the Ctrl + mouse wheel (or touchpad scroll gesture) while over the animation area to zoom in and out.
  • Core Controls.
    • Skip to start ( << ) : Skip to the beginning of the animation.
    • Step backwards ( < ) : Step backwards one step in the animation.
    • Step forward ( > ) : Step forward one step in the animation.
    • Skip to end ( >> ) : Skip to the end of the animation.
    • Auto Step Speed Set to anything other than off to automatically step through the animation at the selected speed.
    • Control + D Describe the current state of the data structure. (Only in screen readers.)
  • Data Controls.
    • Infix expression Enter an expression in infix notation. Use parentheses to indicate order of operations. Then press Load Expression