In response to this thread, here is the updated app.math script.[attachment=2]math.py[/attachment]
Usage in a bit. Off to a meeting… 
EDIT: Adding a window to play with. I’d like to ask for the more deviously hacker-minded users to try to break it. That way it can be improved upon. 
Also, degrees and radians functions are commented out within evaluate(), since they aren’t supported in Ignition 7.2.x. Feel free to add them back in!
[attachment=1]eval.vwin[/attachment]
Some quick examples:
x=app.math.evaluate('5+7')
print x
x=app.math.evaluate('sqrt(pow(3,2)+pow(4,2))')
print x
x=app.math.evaluate('__import__("sys").stdout.write("Yep. Still evaluates...")')
print x
[attachment=0]12-2-2013 10-28-16 AM.png[/attachment]