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functions in graph.i  - z
 
 
 
| zoom_factor 
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             zoom_factor, factor  
 
     sets the zoom factor for mouse-click zoom in and zoom out operations.  
     The default FACTOR is 1.5; FACTOR should always be greater than 1.0.  
builtin function, documented at i0/graph.i   line 786  
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| SEE ALSO: | limits,   
  range,   
  unzoom,   
  plg |  |