The phrase "undocumented features" is correct and is commonly used in written English.
It is usually used in the context of software or programs to refer to features of the software that are not mentioned or detailed in the documentation for the program. For example: “Many software programs contain undocumented features that are not mentioned in the user manual.”.
Instead, traders and exchanges argued that these secret "undocumented features", immoral as they might appear, were perfectly legal.
And, he added, Microsoft uses undocumented features in its operating systems that give the company's other software products an edge over those of its competitors.
"There have been lots of stories about the existence of undocumented features" in Microsoft's operating system that were intended to harm competitors, said Bruce Schneier, founder and chief technical officer of Counterpace Internet Security, a computer security firm in Mountain View, Calif.
Since the iPhone's recent software update, several new undocumented features have been uncovered.
Apple is famous for undocumented features and private APIs that it uses on its own apps.
MDScan performs static JavaScript extraction and dynamic code execution [21], but the complexity of emulation of the PDF JavaScript API with undocumented features prohibits a complete and error-free solution.
"Let's just say it's an undocumented feature...".. The cat stretched languidly and began to purr.
For travelers driving a Prius equipped with a voice recognition navigation system, for example, there is an interesting undocumented feature that can help fulfill an innate need.
some versions of GRADS cannot handle units of julian_day, non-standard calendars, months (a documented feature) or fractional years (an undocumented feature).
Woods said that "a back door is an additional undocumented featured deliberately inserted into a device for extra functionality" – in effect, a secret way to get into the chip and control it.
In this paper, we present a novel approach that takes advantage of an undocumented feature so that it is possible to use a cheap iPad accessory, the Camera Connection Kit, to image the disk to an external hard drive attached via USB connection, greatly reducing the required time.
