Dell Inspiron Mini Duo (1090, Late 2010) - Manual (Page 33)

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Using Your Inspiron Laptop
To zoom out:
Move two fingers close
together to reduce the view
of the active window.
Rotate
Allows you to rotate the active content on the
screen. The rotate feature includes:
Twist — Allows you to rotate the active
content using two fingers where one finger is
anchored and the other rotates.
Keeping the thumb in
place, move the index
finger in an arced direction
right or left to rotate the
selected item clockwise or
counterclockwise.