[Macro interactive mode. Type "help" for info.]
help
  Type a function (e.g., "run('Invert')") to run it.
  Enter an expression (e.g., "x/2" or "log(2)") to evaluate it.
  Move cursor to end of line and press 'enter' to repeat.
  "quit" - exit interactive mode
  cmd+M - enter interactive mode
  cmd+shift+F - open Function Finder
  "js" - switch language to JavaScript
x=2
  2.0
x/3
  0.6666666666666666
sin(PI/3)
  0.8660254037844386
run("Blobs (25K)");
run("invert")
  Unrecognized command: "invert"
run("Invert")
close("*")
run("Invert")
  There are no images open.
js

[JavaScript interactive mode. Type "help" for info.]
n=3
  3
n/4
  0.75
sin(PI/n)
  ReferenceError: "sin" is not defined in nashorn:mozilla_compat.js 
Math.sin(Math.PI/n)
  0.8660254037844386
img = IJ.openImage("http://wsr.imagej.net/images/blobs.gif");
  img["blobs.gif" (-8), 8-bit, 256x254x1x1x1]
ip = img.getProcessor()
  ip[width=256, height=254, bits=8, min=0.0, max=255.0]
ip.getStats()
  stats[count=65024, mean=103.26857775590551, min=8.0, max=248.0]
ip.blurGaussian(5);
ip.GetStats();
  TypeError: ip.GetStats is not a function in <eval>  
ip.getStats();
  stats[count=65024, mean=103.36157418799213, min=34.0, max=238.0]
img.show()
ip.invert() // img.updateAndDraw() is automatic
quit
[Exiting interactive mode.]