Using the T command in the Perl debugger produces a stack backtrace similar to $ = main::infested called from file 'Ambulation.pm' line 10 @ = Ambulation::legs (1, 2, 3, 4) called from file 'camel_flea'...
By using a joystick or a pointing device, an on-screen keyboard allows people with mobility impairments to type data. The second sentence states that the on-screen keyboard is the one that uses the joystick or pointing device to allow impaired people to type data.
User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using?
Not using by means that the technology used is incidental, and the focus is on the approach being shown to be feasible. Without more context it's impossible to say what the intended import of the sentence is and whether by would actually be better or not.
Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with non-templates using and typedef are mechanically identical, so the choice is totally up to the programmer on the grounds of readability and communication of intent.
With could work, but it sometimes connotes along with, as in with a companion, which is not the case. Using is the best bet, since that connotes using a tool, which is what we want. Also, do exploration is clunky, and sounds wrong. Explore means the same thing, but sounds much more natural: Explore using Mobile Robot.
word choice - Which is best: "with", "by", or "using"? - English ...