An article is written using a (technical writing style)[https://en.wikipedia.org/wiki/Technical_writing] based on facts which leaves all opinions and guesses out.
Technical writing is performed by a technical writer (or technical author) and is the process of writing and sharing technical information in a professional setting. A technical writer's primary task is to communicate technical information to another person or party in the clearest and most effective manner possible. The information that technical writers communicate is often complex, so strong writing and communication skills are essential. Technical writers not only convey information through text, but they must be proficient with computers as well. Technical writers use a wide range of programs to create and edit illustrations, diagramming programs to create visual aids, and document processors to design, create, and format documents.
While technical writing is commonly associated with online help and user manuals, the term technical documentation can cover a wider range of genres and technologies. Press releases, memos, reports, business proposals, data-sheets, product descriptions and specifications, white papers, résumés, and job applications are but a few examples of writing that can be considered technical documentation. Some types of technical documentation are not typically handled by technical writers. For example, a press release is usually written by a public relations writer, though a technical writer might have input on any technical information included in the press release.