Under Â§ 1505, however, a defendant can be convicted of obstruction of justice by obstructing a pending proceeding before Congress or a federal agency. A pending proceeding could include an informal investigation by an executive agency.
Piecewise is actually a way of expressing the function, rather than a characteristic of the function itself, but with additional qualification, it can describe the nature of the function.
Systematically is defined as being done in an orderly way. An example of systematically is how various issues and concerns are checked one-by-one for a person during a physical exam. systematically. In an organized manner.