Parametrizados

Parametrizados is a term that can refer to several distinct concepts depending on the context.

In computer programming, particularly in web development and database interaction, parameterized queries (or prepared statements) are a technique used to prevent SQL injection attacks. Instead of directly embedding user-supplied values into a SQL query string, these values are passed separately to the database execution engine. The engine then combines the query structure with the data in a way that ensures the data is treated as literal values, not executable code. This separation of code and data is crucial for security.

In mathematics and physics, a parameterized curve is a curve described by an equation where the coordinates of the points on the curve are functions of one or more independent variables, called parameters. For example, a circle in a 2D plane can be parameterized using trigonometric functions, where the x and y coordinates are expressed in terms of an angle parameter. This allows for flexible representation and manipulation of curves and surfaces.

In statistical modeling, a parameterized model is a statistical model that is defined by a set of parameters. These parameters are numerical values that characterize the model's behavior or the distribution of the data it represents. For instance, a normal distribution is a parameterized model, with its mean and standard deviation being its defining parameters. The process of estimating these parameters from data is known as parameter estimation.

The specific meaning of "parametrizados" is therefore determined by the field in which it is used, but the underlying idea often involves defining something (a query, a curve, a model) using adjustable values or variables.